Don't make a blatant lie about Cooler Master having all bad PSUs, you're projecting a stereotype that is false. Their older units are indeed bad like the GX and Extreme series but the Silent Pro and newer models are all great units with solid reviews.
I currently have a Silent Pro 700 and it's been running for 2+ years now with no issues and super quiet. Here's some reviews:http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=134http://www.hardwaresecrets.com/article/Cooler-Master-Silent-Pro-M-850-W-Power-Supply-Review/810http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=193
Just a few examples of the solidity of the newer models.
Check out my $650 build here warliccilraw:http://www.squidoo.com/electronicandmore
If $50 more is really too much for you, the i3 is honestly enough. In gaming the i3 edges out most of the Phenom and FX line, the only thing is that the AMD chips can overclock. The advantage with extra cores is Multi-threading however, if you're mainly gaming the extra cores shouldn't be a big deal.