Beej wroteEdit 2: Yasamokaaaaaaaaaaa.... >.> did u infect me somehow!!! I cant believe i just wrote that ^^^. Must be a graduate syndrom eh? ;)
hahaha finally you posted and took the words straight out of my mouth :D Thanks for mentioning the stuff I wanted to say!...so I did infect you, then I died.
@gipoy: since you base the PSU on the chosen system, and not the system on a chosen PSU, then once you've decided what to get, and made your decision, post the rig you want, and I'll calculate the power requirements and the PSU you'll need.
You need to read reviews, check what has problems, what doesn't. Be sure to read subjective user reviews, but try to avoid sticking with their opinions about certain criteria like noise, cooling, temperatures, load, OCing (some tend to OC to unstable levels). Check the objective reviews for those, and including board design (how many power phases, etc...). Legendary review sites are guru3d, extremetech, bit-tech, techcrunch, tomshardware, anandtech, hardwarecanucks, etc...
@AvoK95: I have just said: do not use online PSU calculators :D They are incredibly inaccurate. The formula I mentioned previously seems to work all the time, and help you get close to ideal PSU efficiency, without wasting dollars, and getting an overkill PSU, and without saving dollars, and having it die on you in a few years. PSUs are recyclable, especially when they're efficient. Not so much when they are inefficient. It's one of the things, including cases, monitors, speakers, peripherals, that can be reused on the same system or a different one.