Staples has the HP Pavilion p6610f AMD Athlon Quad-Core Desktop PC for $450 with free shipping.
-AMD Athlon II 635 Quad-Core 2.9GHz Processor, 4GB DDR3, 750GB HDD
-ATI Radeon HD 4200 Graphics, DVD+/-RW, 802.11n, Windows 7 HP x64
http://www.staples.com/HP-Pavilion-...255-_-404255-_-10422268&SID=168401&PID=404255
-AMD Athlon II 635 Quad-Core 2.9GHz Processor, 4GB DDR3, 750GB HDD
-ATI Radeon HD 4200 Graphics, DVD+/-RW, 802.11n, Windows 7 HP x64
http://www.staples.com/HP-Pavilion-...255-_-404255-_-10422268&SID=168401&PID=404255