Buy.com offers the 5.8-lb. Lenovo IdeaPad Z580 Intel Core i7 2.9GHz 15.6" LED-Backlit Widescreen Notebook
in Grey, model no. 215129U, for $649.99. This $100 mail-in rebate
cuts it to $549.99
and Cost Central
offers it for the same price via the rebate above.) With free shipping
, that's $100 under our mention from three days ago and the lowest total price we've ever seen for a Core i7-equipped IdeaPad Z580 laptop. (It's also a current price low by $20.) It features an Intel Core i7-3520M 2.9GHz Ivy Bridge dual-core processor, 15.6" 1366x768 LED-backlit widescreen LCD, 4GB RAM, 500GB hard drive, DVD burner, 802.11n wireless, 6-cell battery, and Windows 7 Home Premium 64-bit. Rebate expires September 3.
Of note, you can get a Microsoft Windows 8 Upgrade for $14.99 before a $15 mail in rebate, $0 after.