Also, did you buy the other components already? Because I'd see few things that I'd correct:
1. Do you really need that expensive power supply?
2. Better get 8 GB 1600 RAM instead of 16 GB 1333 RAM. 16 GB is totally useless.
3. I'd strongly advice going with intel instead of AMD for the CPU. The most important reason for this suggestion is that AMD makes crap gaming CPUs (they admitted it themselves few weeks ago, that's why they are backing out of CPU business).
GTX570 is a way better card than a GTX560TI let alone a GTX560. Chevy vs ford - BS - for gaming Intel is better - AMD Phenom pretty good bang for the buck. Fill out the template for new builds like everybody else and we will point you in the right direction - unless of course you already have those components.
with ram the ram speed 1333/1600 the 2600 is a little faster so it will help the cpu and gpu when your gaming. the 1333 ram stock speed is 667 the 1600 stock speed in the mb is 800. so two pc with the same cpu and gpu the c with the 1600 ram going to be a little faster. ram any faster then 1600 the cost to speed when doing a budget build is not worth it. with video cards nvidia. nvidia has what called cuda cores. as you go down in there models ie 580..570..560..550... to hit the price point that nvidia is selling the cards they disable parts of the gpu..so there less cuda cores. less cores mean less frame rates in games. take a look a toms gpu guild for there test games...you see the 570 is faster then the 560 and the 580 is faster then the 570.