All computers have actually been wiped and refilled (fresh set up). Checked as working and in good condition. All have legal os installed and authentic oem sticker on side.

　　Dell Optiplex 980 Mini Tower ($325).

　　-Intel Core i5 3.2 GHz Processor.

　　-4 GB DDR3 RAM.

　　-Nvidia Geforce 8600 GTS Video Card.

　　-320 GB Hard Drive.

　　-DVD R/W.

　　-Windows 7 Professional OS.

　　Dell Optiplex 755 Mini Tower ($225).

　　-Intel Core 2 Duo 2.66 GHz.

　　-4 GB RAM.

　　-ATI Radeon 2400 Pro Video Card.

　　-160 GB Hard Drive.

　　-DVD Reader/DVD Burner/Card Reader.

　　-Windows Vista Ultimate OS.

　　Dell Optiplex 755 Desktop ($125).

　　-Intel Core 2 Duo 2.53 Ghz.

　　-4 GB RAM.

　　-Intel Express Video.

　　-80 GB Hard Drive.

　　-DVD Reader/Burner.

　　-Windows Vista Business OS.