WOW, you sure don't know how to take suggestions. If you don't agree with a recommendation, that's fine. Just keep your childish comments to yourself. Do you really think anyone will want to help you when you make stupid comments like that? The motherboard and GPU dirtmountain recommended are superior to the ones you chose, but apparently you don't agree. How many posts are you going to make asking about this build?
GPU RAM has little effect on performance. The 4670 has a faster CPU clock speed, faster RAM speed, GDDR3 vs. GDDR2, etc... Between the 4670 and the 4650 for the same price, the 4670 is the obvious choice. Here's a link to their specs:
The specs on the AMD Athlon 64 X2 6000 3.1GHz show "Cooling Device Heatsink and Fan included". The AMD Athlon 64 X2 7750 doesn't say it includes a HSF, but if you can trust the newegg reviews, a lot of them talk about the heatsink.
Yes, the manual will explain things pretty well. Be sure to carefully read the manual before you try to put anything together.
The 7750 is newer and based on the same platform as the Phenom (in fact, it's just a Phenom with two cores disabled). The 7750 is faster clock-for-clock, so the 3.1GHz vs 2.7GHz question is kind of irrelevant. Here's an article you might be interested in:
Ok thanks! you have been alot of help! Hope to buy it in a bout two weeks! might ask about another build just to be sure I am on the right track because who knows what the prices and upgrades will be then.
You'll notice that the 6000+ and 7750 go back and forth in the benchmarks.
That test's reliability is questionable, as it doesn't include OCing at all. The 7750(BE), clock for clock on stock clock speed is about the same as the 6000+, but who gets a Black Edition and doesn't OC it? In light of the fact that the 7750BE is the EXACT same price as the 6000+, I'd go with the 7750 any day.