I just bought a rig with the following specs:
Athlon 64 3500+ 2.2ghz skt939
Asus A8N Premium skt 939 motherboard
2Gigs Kingston 400mgz ram
evga gForce 7800gt 256mg video card
audigy 2
400watt psu with 17A on the 12V rail (generic, came with the NZXT Nemesis Elite case)
Acer 1916ASD 19"LCD...