Here is a benchmark comparison between Phenom II X6 1100T BE - 3.3GHz vs Core i5 2500K - 3.3GHz
Check out the gaming benchmarks for the 3.3Ghz CPUs. One is six cores and the other is four. -> The thing to take away is @ the same clock the i5 2500 has a very nice lead in the gaming benchmarks.
That's why I thinking the i5 2400 3.1Ghz CPU @ $189 might be a better choice than the X6 1090T 3.2Ghz @ $200 in a gaming & home theater build with no media content creation workloads. At nearly an identical price.
Good. Im glad you switched over to Sandy Bridge. It really amazes me how many people still want to build amd machines when they can build a Sandy Bridge computer thats way faster.
I see one bad. AMD states on their website that this card requires a minumum of 500 watt. I would highly suggest you get at least a 600 to 700 watt psu. Always get a big enough psu that your build can grown into. With the one you have listed, youll need a whole new psu if you want to crossfire down the road. I dont believe in putting "ceilings" in my builds because I chose the wrong psu.