newegg offers the 5.8-lb. Lenovo IdeaPad Z580 Intel Core i5 2.5GHz 15.6" LED-Backlit Widescreen Notebook
in Gray Metal, model no. 21512MU, for $579.99. This $100 mail-in rebate
drops it to $479.99
. With free shipping
, that's $170 off list and the best price we've seen for an Ivy Bridge-equipped Z580 laptop with a 500GB hard drive. Features include an Intel Core i5-3210M 2.5GHz Ivy Bridge dual-core processor, 15.6" 1366x768 LED-backlit widescreen LCD, 6GB RAM, 500GB hard drive, DVD burner, 802.11n wireless, Bluetooth, webcam, 6-cell battery, and Windows 7 Home Premium 64-bit. Offer ends September 3.