I agree with Memnoch's list above. I also heard that Silverstone makes a good PSU, but have never owned one so can't say. One thing you may want to look for (mostly cosmetic) but if you have a window on your case, you probly want to get a PSU with braided lines (air flow and appearance), like this
one. I have to admit, I was a little scared buying this PSU b/c it was under $100, but so far it's rocking my space-heater/Prescott 3.4GHz with two 250GB Seagates in a RAID1 and a X800XL AGP card. Runs Prime95 stable for 24+ hours and played through COD2, FEAR, and Far Cry (all at high settings) through a 5 hour marathon without a hiccup. No problems in 10 days at least. Fluctuation on rails is under 2% so far. It's branded TR, but it's really a Thermaltake. Got the Big Typhoon HSF on that rig, and let me tell, that thing is a MONSTER!
From experience, I can recommend without a doubt OCZ, Antec, and PC Power and Cooling (BIG bucks, really for high end CAD workstations and servers). I built a couple machines with this year with:
OCZ Powerstream 520W - AMD 4200+ X2, 7800GTX, two SATA drives RAID0 - rails solid
Antec Truepower 550W EPS - Dual xeon 3.0GHz @ 3.9GHz, Matrox RT200 + 256 Parhelia, 4 SATA drives in 2 arrays - rails solid
OCZ Powerstream 420W - AMD 3800+ X2, two 6600GTs, 2 SATA in RAID0 - rails solid.
I have PCP&C (850W) coming in for a workstation build (2 dual core opterons - not mine - I wish!), can't wait to check it out!
This post has been edited by Vitalix: 05 January 2006 - 08:30 AM