PWU: Antec High Current Gamer Series HCG-750 750W ATX12V v2.3 / EPS12V v2.91 SLI Certified CrossFire Certified 80 PLUS BRONZE Certified Active PFC Power Supply $109.99
OS W7 $100
How much of the improvement would the i7 2600k be over the i5?
Would you recommend SLIing the 560's or would a single 580 be superior just looking for little tips like that.
Also dose a ssd make a big enough difference in gaming that justifies buying one?
For gaming the 2600K is not better, just better for non-gaming tasks.
The GPU is good, but if you are waiting until 1/12 I'd want to see what the GTX 600 series produces.
Your PSU is good, but if you are a serious gamer go with an 850W +
SLI with GTX 560 or higher will not have a large issue with microstuttering, because it is a powerful enough card. The dual 560 ti's will outperform a 580, but you may want to buy a 580 and see if you will sli it in the future.