Hi all i know you get alot of the same posts, but i dont wanna make the mistake 3 times, first i got a 600watt generic one oh dear, then i used my 500watt that came with my case.Any way i have chosen Hiper HPU-4M580 Type R 580W ATX2.2 PSU - Black from http://www.overclockers.co.uk/showproduct.php?prodid=CA-009-HP its 580, i will be running a intelcore2 duo 1.8 ati 1950x tubro dfi moby 1gb ram 80gb hdd. the main thing is it good or not thanks for ya help