All thought i would not use one PC for 2 user or more since i already got 3 PC's running in my house & got many more parts & screen to built about 5-6 PC's lol! (good enough for Internet)
Only reason I want 2 people on one pc is my laptop broke, and me and my girlfriend are lost without PC lol, we love gaming!
And my current pc is a 3.4ghz quad core OC'd to 4.2ghz, only 4 gigs of memory though, and a ATI5770 video card. So it has plenty of speed to act as two pc's
Plus If I can get this to work, I was planning on purchasing another 4gigs of memory, and another video card.. Then we can both share this PC, tell I can afford to build her an entire pc, then I was just gonna put the 4gigs of memory and vid card in her new pc.