A best bet is the 5.78-lb. Lenovo ThinkPad Edge E520 Core i3 2.1GHz 15.6" LED-Backlit Notebook (pictured), model no. 1143-3BU, for $439.88. With free shipping, that's the lowest total price we could find by $30. It features an Intel Core i3-2310 2.1GHz dual-core Sandy Bridge processor, 15.6" 1366x768 LED-backlit widescreen LCD, 4GB RAM, 320GB hard drive, DVD burner, 802.11n wireless, and Windows 7 Professional 64-Bit.