Gateway M-1631u 15.4" Laptop with 4GB RAM and 320GB drive for $459.95 shippped.  Here is a screenshot for your reference.  Its features include an AMD Turion 64 X2 dual-core 2.0GHz CPU, 15.4" LCD at 1280 x 800 resolution, 4GB RAM, 320GB hard drive, dual layer DVD burner, built-in 1.3-MP webcam and microphone, wireless 802.11b/g, media card reader, HDMI port, Windows Vista Home Premium 64-bit, and more.  This laptop usually goes for $549.