Bestbuy was selling Toshiba Satellite C655-S5068 laptop with Intel Pentium processor, 15.6″ display, 4GB memory, 320GB hard drive for $400. This is the best price with specs like these.
This laptop features a 2.3GHz Intel Pentium T4500 dual-core processor, 15.6-inch HD LED-backlit display with resolution of 1366×768 pixel, Intel GMA 4500M graphics, 4GB of DDR3 RAM, 320GB hard drive (5400 rpm), DVD burner, card reader, 802.11/b/g/n Wifi, LAN, two USB 2.0 ports, and a 6-cell lithium-ion battery.
The machine runs Windows 7 Home Premium 64-bit and is priced at $399.99.