TheWesDude said:
28w the geforce 8800 that my card wants
You mean amperes, right? In that case, yes, the amp rating is far more important than the wattage. The only situations in which someone (who isn't building a dedicated server) needs a 600+ watt PSU are those with monster SLI/Crossfire configurations, and/or lots of hard drives. It's a lot better to pay more for a high-quality 450-500 watt PSU. It is
WORTH IT to pay a bit more for a high-quality brand like Corsair, Seasonic, or PC Power & Cooling. Avoid brands like Rosewill and Aspire like the black death. You'll be lucky if their PSUs last a year without popping their capacitors while possibly taking out something else with them.
Other component reccomendations for those who are interested:
CPU is up to your preference, really. Most modern CPU's with two- or four-cores running in the 2.2-3.0ghz range is fine. Unless you're super-concerned about being able to overclock, or getting that extra fraction of a FPS, or doing a lot of rendering/encoding, CPU choice doesn't really matter much these days. The vast majority of games are far more dependent on the graphics card.
DDR2 1066mhz RAM isn't anything special. Get 800mhz with timings of 4 - 4 - 4 - 12. The more the better, but 3gb max for 32-bit operating systems. With 4gb or more you can only use up to 3.3gb or so due to addressing limitations, so it's a waste. I recommend 2gb at least. Shit, you can get 2gb for under $30, so why not?
For graphics cards on the AMD/ATi side, anything that's a HD 4850 or better is just dandy. Even the HD 4830 is pretty good. I jumped the Nvidia ship a little while back, but I think the lowest you'd want to go with them is the 9800 something-or-other. Spring for a GTX 260 if you can. I've heard those are great.
As for hard drives, get a Seagate or Western Digital. Storage is cheap as hell nowadays, so get the biggest one your budget allows. Read reviews to get a feel about the reliability of a drive if you're concerned. Seagate's 7200.11 line had a firmware issue, but that has long since been corrected. I have not had good experiences with Hitachi and Samsung drives, and I cannot reccommend them.
As for soundcards, onboard is fine. Really, it is. If you're worried about sound quality or system performance with modern onboard, and you don't use your computer to make your own music professionally, you're stupid and I hate you.
As for motherboards, that's far more complicated. What I can tell you is to read reviews and avoid JetWay and Elitegroup.