1: mobo is good choice.
2:ram is ok. i would of got some mushkin redline or blackline though
3: better case is antec 302 or antec p280. they have excellent build quality for good price. if you dont like silence from the p280, the 1100 is the same thing.
4: if you dont plan on SLI, dont bother with 750w. a 650 will do. good one is the xfx core 650w. it is made from the same company that makes corsair power supplies(seasonic)
5: recommend a larger ssd such as the 256gb model or my mushkin chronos deluxe.