Lenovo IdeaPad G550 with 15.6" LCD & Dual-Core 2.0GHz for $479.00 shipped after coupon code USPLVOG550.  Here is a screenshot for your reference.  Its features include an Intel Dual-Core processor T4200 at 2.0GHz, 15.6" widescreen LCD with LED-backlit at 1366 x 768 resolution, 4GB RAM, 320GB hard drive, dual layer DVD burner, wireless 802.11b/g, Windows Vista Home Premium, and more.  Note that it is eligible for Windows 7 upgrade.