To be honest, I've found that all these recommendations to "not cheap out" on PSUs to be bogus. I had a Rosewill in this machine that lasted me six years under heavy load and sparse cleaning, and I have had no-name ones last me longer. Just read the reviews and you'll do fine.

As for the CPU, it's solid as far as AMD CPUs go, but obviously any Black Edition would be better. Ideally, a Phenom II X4 955, since after that point you are paying for nothing.