Staples has the HP Pavilion p6510f Desktop PC for $416 with free shipping.
-AMD Athlon™ II 630 Quad-Core Processor (2.8GHz)
-4GB installed memory
-750GB hard drive
-SuperMulti DVD Burner with LightScribe Technology
-Wireless LAN 802.11b/g/n
-Monitor sold separately
-High Definition Audio with up to 7.1 surround sound capabilities
-15-in-1 memory card reader
-HP USB keyboard and optical mouse
-Microsoft Windows 7 Home Premium 64-bit
-1 year warranty
http://www.staples.com/HP-Pavilion-...255-_-404255-_-10422268&SID=152017&PID=404255