Lenovo ThinkCentre M57 Lenovo ThinkCentre M57, Pentium Dual-Core E6550@2.33 GHz (Upgraded), 2 GB DDR2 RAM (Upgraded Memory), 320 GB SATA HDD (Upgraded Hard Drive), 300Mbps Wireless Card (Upgraded Add-On), DVD ROM... PC has had Windows Vista Business fully installed & updated with all updates, with over 16hrs of customizations done. The HTPC will be PLUG & PLAY READY, computer has the gaming program Steam installed, VLC player for movies & XBMC (Xbox Media Center). Great for the living room, gaming/movies. (Home Theater Personal Computer) Games preinstalled, Avencast - Rise of the Mage, Torchlight, Fate - The Traitor Soul, Defense Grid The Awakening. Many parts have been upgraded - CPU, RAM, HDD, Wifi... W.E.I. (Windows Experience Index Score) 5.2 CPU (Processor), 5.2 RAM (Memory), 3.4 GPU (Graphics Processor Unit), 3.3 GGPU (Gaming Graphics Processor Unit), 5.7 PHD (Primary Hard Disk) Great PC for Work, School, Games, Surfing the Web, Etc...