You thread hijacker, you.
I'm just going to say, you should drop at least $50 from your CPU choice and put it into the GPU if you are gaming. And drop the seagates for samsung F3s or WD Blacks. I've also never heard of that PSU. You sure you want to power your system with and unknown and potentially cheap PSU?
Jordan, of course the most powerful cpu with the most cores would be the best, but it won't always show a difference from, say the x3 or x3 show a difference from the x2. It all depends what games you intend to play. Most games today can only use 3 cores. But in the future, this will change. We already have the multi-core BFBC2 and FSX. But I agree with everyone so far, the x4 955 C3 stepping is your best choice, if you can afford it. But if you can get the x3, that is also a good budget model, although often overpriced. The x3 Athlon II models are lacking the L3 cache but still perform really well.