I like OCZ PSUs - the GameXtreme ones I have are complete troopers - handle any load and stay cool and fairly quiet - the Z series, fatal1ty, etc. ones are all good too but my experience of the "stealth" xtreme ones is they are far from stealthy and actually quite noisey and after a year or so the power output degrades considerably. ModXtreme we might have been unlucky with - but both of the ones we had (bought at the same time from the same place) failed gracefully after 2 years within weeks of each other.