This deal has ended.
Update: just to clarify, this system comes with Windows Vista but can be updated to Windows 7 Home for $30. Through 6am CST 3/12, the Dell Inspiron 560 Desktop PC is at Dell.com for just $399 after a $180 price drop. This comes with an 20" Dell IN2010N HD Monitor and features a 2.2GHz Intel Celeron processor, 4GB of memory, 320GB hard drive, 16x DVD / CD burner, media card reader, integrated Ethernet, and Windows Vista. Shipping is free with sales tax charged in most states.