TigerDirect offers the 7.3-lb. Acer Aspire AS7750G-6645 Intel Core i5 2.5GHz 17.3" LED-Backlit Widescreen Notebook, model no. NX.RVHAA.002, for $549.97. This $50 mail-in rebate cuts it to $499.97. With $9.16 for shipping, that's $150 off list, tied with our April mention, and the lowest total price we could find. It features a Intel Core i5-2450M 2.5GHz dual-core processor, 17.3" 1600x900 LED-backlit widescreen LCD, 4GB RAM, 500GB hard drive, dual-layer DVD burner, 802.11n wireless, Gigabit Ethernet, memory card slot, webcam, 6-cell battery, and Windows 7 Home Premium 64-bit. Rebate ends May 31.

Dell Small & Home Office offers the Dell Vostro 3350 Intel Core i5 2.5GHz 13.3" LED-Backlit Widescreen Notebook in Aberdeen Silver bundled with a $100 Dell eGift Card for $599. Coupon code "23LBB0BDXPH2FZ" cuts it to $539.10. With free shipping, and assuming you use the gift card, that's the best price we've seen for a Dell Vostro 3350 laptop equipped with this CPU. (For further comparison, it's also $170 below the lowest total price we could find for a comparable Core i5-equipped Dell Vostro 3350 laptop elsewhere.) Sales tax is added where applicable. Features include an Intel Core i5-2450M 2.5GHz Sandy Bridge dual-core processor, 13.3" 1366x768 LED-backlit LCD, 4GB RAM, 320GB hard drive, dual-layer DVD burner, 802.11n wireless, Bluetooth 3.0, webcam, fingerprint reader, 8-cell battery, and Windows 7 Professional 64-bit.

Fry's Electronics offers the Lenovo G570 Intel Celeron Dual-Core 1.6GHz 15.6" LED-Backlit Widescreen Notebook, model no. 4334ELU, for $279. Shipping costs around $11, or choose in-store pickup. Even with shipping, that's the lowest total price we've seen for any Lenovo G570 laptop. (It's also a very good price for a 15.6" laptop with a Celeron B815 CPU and 4GB of RAM.) Sales tax is added where applicable. It features an Intel Celeron B815 1.6GHz dual-core processor, 15.6" 1366x768 LED-backlit widescreen LCD, 4GB RAM, 320GB hard drive, DVD burner, 802.11n wireless, webcam, 6-cell battery, and Windows 7 Home Premium 64-bit.

Office Depot offers the 6.1-lb. HP Pavilion G7-1310us Intel Core i3 2.3GHz 17.3" LED-Backlit Notebook in Dark Grey, model no. A6Z19UA#ABA, for $499.99. (Click through to "Office Depot" to see this price.) This $50 mail-in rebate drops it to $449.99. With free shipping, that's the lowest total price we could find for this laptop by $80, although we saw it for $50 less in February. Sales tax is added where applicable. Features include an Intel Core i3-2350M 2.3GHz dual-core processor, 17.3" 1600x900 LED-backlit widescreen LCD, 6GB RAM, 640GB hard drive, dual layer DVD burner, webcam, memory card reader, 802.11n wireless, Bluetooth, 6-cell battery, and Windows 7 Home Premium 64-bit. Rebate ends June 9.

Lenovo offers the 5.7-lb. Lenovo IdeaPad G570 Intel Core i5 Dual 2.5GHz 15.6" Notebook in Dark Brown, model no. 4334B6U, for $829. Coupon code "USPZ5B60517" cuts it to $549. With free shipping, that's $20 under our mention from two weeks ago and the lowest total price we've seen for a Lenovo IdeaPad G570 laptop with this CPU and 8GB of RAM. Sales tax is added where applicable. Features include an Intel Core i5-2450M 2.5GHz Sandy Bridge dual-core processor, 15.6" 1366x768 LCD, 8GB RAM, 500GB 7200 rpm hard drive, DVD burner, 802.11n wireless, Bluetooth 2.1+EDR, webcam, 6-cell battery, and Windows 7 Home Premium 64-bit.

Dell Home and Dell Business & Education take 15% to 25% off select factory-refurbished desktops and notebooks via the coupon codes listed below. They're among the best percent-off discounts we've seen on these units in recent months. Many orders qualify for free shipping and sales tax is added where applicable. Some exclusions may apply. Refurbished items carry a 1-year Dell warranty. Coupons expire May 22. The deals:

• 25% off any Dell Outlet Inspiron All-in-One PC via code "BNXSQ7JBN7ZLWW "
• 25% off any Dell Outlet Inspiron 14z Laptop via code "2$W?S4XQ23DVS4"
• 20% off any Dell Outlet Inspiron R Series Laptop via code "8?0XC$?RP0JFLJ"
• 10% off any Dell Outlet XPS 13 Ultrabook via code "LHZ3C4Z6L3TB9P"

BJ's Wholesale Club offers its members the 5.8-lb. ASUS Intel Ivy Bridge Core i7 2.3GHz 15.6" LED-Backlit Widescreen Notebook, model no. R500VD-BS71, for $679.99 with $9.22 for shipping. (Non-members pay $34 more.) It's the least expensive laptop we've seen with this Ivy Bridge CPU and 8GB RAM by $81. (For further comparison, it's also $131 under the lowest total price we could find for a similarly-equipped ASUS laptop elsewhere.) Sales tax is added where applicable. It features an Intel Core i7-3610QM 2.3GHz Ivy Bridge quad-core processor, 15.6" 1366x768 LED-backlit widescreen LCD, 8GB RAM, 500GB hard drive, DVD burner, NVIDIA GT 610M 2GB video card, 802.11n wireless, Gigabit Ethernet, USB 3.0, 6-cell battery, and Windows 7 Home Premium 64-bit. Deal ends June 10.

Lenovo offers the 4.9-lb. Lenovo IdeaPad Y480 Intel Ivy Bridge Core i7 2.3GHz 14" LED-Backlit Widescreen Notebook in Dawn Gray, model no. 209388U, for $1,399. Coupon code "USPY4880517" drops it to $799. With free shipping, that's $800 off list and tied with an expired mention from yesterday as the lowest total price we've seen for a Lenovo Y480 laptop with a quad-core processor. Sales tax is added where applicable. Features include an Intel Core i7-3610QM 2.3GHz Ivy Bridge quad-core processor, 14" 1366x768 LED-backlit widescreen LCD, 8GB RAM, 1TB hard drive, DVD burner, NVIDIA GeForce GT 640M 2GB graphics, 802.11n wireless, Gigabit Ethernet, Bluetooth 4.0, webcam, 6-cell battery, and Windows 7 Home Premium 64-bit. Deal ends May 24.

Lenovo offers the 5.7-lb. Lenovo IdeaPad Z570 Intel Core i7 2.2GHz 15.6" LED-Backlit Widescreen Notebook in Gunmetal Grey, model no. 1024DQU, for $1,079. Coupon code "USPZ5DQ0517" cuts it to $699. With free shipping, that's $320 off list and the lowest total price we've seen for a Lenovo IdeaPad Z570 with a Core i7 quad-core processor, 8GB RAM, and a 1TB hard drive. Sales tax is added where applicable. Features include an Intel Core i7-2670QM 2.2GHz Sandy Bridge quad-core processor, 15.6" 1366x768 LED-backlit widescreen LCD, 8GB RAM, 1TB hard drive, DVD burner, webcam, 802.11n wireless, Bluetooth, 6-cell battery, and Windows 7 Home Premium 64-bit. Coupon expired May 24.

Fry's Electronics offer the Lenovo IdeaPad Z570 Intel Core i7 2.2GHz 15.6" LED-Backlit Widescreen Notebook, model no. 1024AYU, for $549.99 with free shipping. That's $50 under our January mention and the lowest total price we've ever seen for a 16" Core i7-equipped IdeaPad Z570 notebook. (For further comparison, it's $30 under the lowest total price we could find for a refurbished unit; this one's new.) Sales tax is added where applicable. Features include an Intel Core i7-2670QM 2.2GHz Sandy Bridge quad-core processor, 15.6" 1366x768 LED-backlit widescreen LCD, 4GB RAM, 500GB hard drive, DVD burner, 802.11n wireless, Bluetooth, media card reader, 6-cell battery, and Windows 7 Home Premium 64-bit. Deal ends May 24.

Update: It's now only available for free in-store pickup.

Best Buy offers the 5.3-lb. Toshiba Satellite C655-S5503 Intel Core i3 2.3GHz 15.6" LED-Backlit Widescreen Notebook, model no. PSC2EU-08E02H, for $379.99 with free shipping. That's tied with our mention from two weeks ago and $99 under the lowest total price we could find for a Core i3-equipped 16" Toshiba C655 laptop elsewhere. Sales tax is added where applicable. Features include an Intel Core i3-2350M 2.3GHz dual-core processor, 15.6" 1366x768 LED-backlit widescreen LCD, 4GB RAM, 500GB hard drive, DVD burner, webcam, 802.11n wireless, media card reader, 6-cell battery, and Windows 7 Home Premium 64-bit.

Fry's Electronics offers the 5.7-lb. Lenovo G570 Intel Core i3 Dual-Core 2.3GHz 15.6" LED-Backlit Widescreen Notebook in Black, model no. 43349LU, for $347 plus around $11 for shipping. That's $21 under last week's mention of a different color and the lowest total price we've seen for a new 16" Lenovo laptop with a Core i3 CPU, 4GB RAM, and a 500GB hard drive. (It's a current price low by $72.) Sales tax is added where applicable. It features an Intel Core i3-2350M 2.3GHz dual-core Sandy Bridge processor, 15.6" 1366x768 LED-backlit widescreen LCD, 4GB RAM, 500GB hard drive, DVD burner, 802.11n wireless, webcam, 6-cell battery, and Windows 7 Home Premium 64-bit. Deal ends May 24.

TigerDirect offers the 4.9-lb. Acer Aspire Timeline X AS4830TG-6808 Intel Core i5 2.5GHz 14" LED-Backlit Widescreen Notebook in Blue, model no. LX.RGL02.150, for $599.97 plus $8.96 for shipping. That's $21 under our March mention and the lowest total price we could find by $11. It features an Intel Core i5-2450M 2.5GHz dual-core Sandy Bridge processor, 14" 1366x768 LED-backlit widescreen LCD, 4GB RAM, 500GB hard drive, dual-layer DVD burner, 802.11n wireless, Gigabit Ethernet, Bluetooth 2.1 +EDR, NVIDIA GeForce GT 540M 1GB graphics card, 1.3-megapixel webcam, 6-cell battery, and Windows 7 Home Premium 64-bit.

Lenovo offers the 4.4-lb. Lenovo IdeaPad U400 Intel Core i3 Dual 2.3GHz 14" Widescreen Notebook in Graphite Grey, model no. 09932NU, for $949. Coupon code "USPU2N0517" cuts it to $649. With free shipping, that's $500 off list, and the lowest total price we could find for this configuration. (For further comparison, yesterday we saw a similarly configured IdeaPad U400, which had a weaker processor and less RAM, for the same price.) Sales tax is added where applicable. Features include an Intel Core i3-2350M 2.3GHz dual-core Sandy Bridge processor, 14" 1366x768 widescreen LCD, 6GB RAM, 500GB hard drive, AMD Radeon HD 6470M 1GB graphics card, DVD burner, 802.11n wireless, webcam, 4-cell battery, and Windows 7 Home Premium 64-bit. Deal ends May 24.

Lenovo offers the 4.9-lb. Lenovo IdeaPad Z470 Intel Core i5 2.5GHz 14" Widescreen Notebook in Ebony Brown, model no. 10225CU, for $849. Coupon code "USPZ45C0517" cuts it to $549. With free shipping, that's tied with our mention from last week as the lowest total price we've ever seen for a IdeaPad Z470. Sales tax is added where applicable. It features an Intel Core i5-2450M 2.5GHz "Sandy Bridge" dual-core processor, 14" 1366x768 widescreen LCD, 6GB RAM, 500GB hard drive, DVD burner, 802.11n wireless, Bluetooth, webcam, 6-cell battery, and Windows 7 Home Premium 64-bit. Deal ends May 24.

Lenovo offers its 6-lb. Lenovo IdeaPad Y570 Intel Core i7 2.2GHz 15.6" Widescreen Notebook in Dusk Black, model no. 08622WU, for $1,099. Coupon code "USPY52W0517" cuts it to $749. With free shipping, that's $30 under our mention from a week ago and the lowest total price we've seen for an IdeaPad Y570 laptop with a 750GB hard drive. Sales tax is added where applicable. Features include an Intel Core i7-2670QM 2.2GHz Sandy Bridge quad-core processor, 15.6" 1366x768 widescreen LCD, 8GB RAM, 750GB hard drive, DVD burner, NVIDIA GeForce GT 555M 1GB video card, 802.11n wireless, webcam, Bluetooth 2.1 + EDR, USB 3.0, 6-cell battery, and Windows 7 Home Premium 64-bit. Coupon expires May 17.

Amazon offers the 5.7-lb. ASUS AMD A6 1.4GHz 15.6" LED-Backlit Widescreen Notebook in Mocha, model no. A53Z-AS61, for $429.99 with free shipping. That's $170 off and a very low price for a 16" laptop with this CPU and a 750GB hard drive. (We saw a similar Toshiba model with a smaller hard drive for $30 less earlier today, still available.) Features include an AMD A6-3420M 1.4GHz quad-core processor, 15.6" 1366x768 LED-backlit widescreen LCD, 4GB RAM, 750GB hard drive, DVD burner, 802.11n wireless, Gigabit Ethernet, webcam, media card reader, 6-cell battery, and Windows 7 Home Premium 64-bit.

Best Buy offers the 5.5-lb. HP 2000-428dx AMD Fusion 1.65GHz 15.6" LED-Backlit Widescreen Notebook in Charcoal Gray, model no. QE339UA#ABA, for $299.99 with free shipping. That's tied with last week's mention and the lowest total price we could find for this configuration by $79. Sales tax is added where applicable. Features include an AMD Fusion E-450 1.65GHz dual-core processor, 15.6" 1366x768 LED-backlit widescreen LCD, 4GB RAM, 320GB hard drive, DVD burner, 802.11n wireless, Ethernet, webcam, memory card reader, 6-cell battery, and Windows 7 Home Premium 64-bit.

Update: Shipping is no longer available, however, you can order it online for in-store pickup.

Lucky Dog Electronics via eBay offers the factory-refurbished Dell Inspiron 17R N7110 Intel Core i7 2GHz 17.3" LED-Backlit Widescreen Notebook for $629.99 with free shipping. Outside of the price below, that's the lowest total price we could find for a refurb by $47. (We saw a new unit with a better CPU and better video, but less RAM and hard drive storage for $2 less last month, since expired.) It features an Intel Core i7-2630QM 2GHz quad-core processor, 17.3" 1600x900 LED-backlit widescreen LCD, 8GB RAM, 750GB hard drive, DVD burner, 802.11n wireless, Bluetooth, USB 3.0, 6-cell battery, and Windows 7 Home Premium 64-bit. A 1-year Dell warranty applies.

Of note, Geeks has a similar factory-refurbished model for $609.99 plus $19 for shipping; however, it only carries a 90-day Dell warranty.