AMD, Intel, ATI, Nvidia...I don't care as long as it can be overclocked . OCD Torture Rack: DD Torture Rack/Asus P5QC (775)/DFI NF4 Ultra D (939)/Asus P4P800 Deluxe (478)/Corsair DDR400 Pro 1gb/G.Skill Ripjaws DDR3 4gb/Kingpin F1 Dark Dragon Pot/Tek-9 FAT 6.0 GPU Pot/Kingpin Mem Pot/Custom "Quick WB swap" watercooling.