Anyway, the worst is a 3.2ghz P4 with 800mhz bus I suppose... Along with a ATI 9800 Pro and you have just about the fastest you can get. Dont know if it fits in 1000 euros though, along with the rest of it. The motherboard and memory is pretty expensive I would guess, and you'll need a good PSU, soundcard and junk. Including a really cool (cool as in good cooling) case. It gets kind of expensive when lining it up, hehe.