I built a system there on Black Friday, and so here's a few comments based on the research I did in prep, and since.
1) Change the PS. The Xtremegear (the in-house brand for Cyberpower) is notorious for having reliability issues and even causing damage to other components. I learned there was a lot more to power supplies that just how many Watts they are listed as having. Recommend you research a few options on your own. I ended up getting the 850W corsair enthusiast (non-modular). Depending on whether you want to go Crossfire down the road, you wouldn't necessarily need something that large.
2) Change the type of RAM - don't get the "Corsair or major brand". CP treats the term "major brand" very loosely. That options very regularly yields very poor quality RAM that can cause a lot of system stability issues. Upgrade to Hyper-X or Vengeance.
The rest of it seems reasonable, at least to me. A few more things I picked differently, just for some perspective.
1) For gaming there isn't a really a difference between the 2600k you went with, and the $100 cheaper 2500k. I went with the 2500k, and used the difference towards a 120gb Intel 320 SSD as a boot drive, in additional to a larger data drive
2) I went with air cooling instead of liquid - just seemed less risky to me. I picked the Hyper 212 EVO, which has good reviews as long as you aren't trying a real aggressive OC.
3) I was impressed with the reviews for the Corsair 400r case, given cost. So went with that.
4) I'm not too up to speed on motherboards, but had tons of people recommend the Gigabyte Z68X-UD3H-B3, which is what I went with.
I have to agree with weeze on just about everything except the cooler for the CPU If you see my sig you will see what I went with but don't get the same power supply as I did although I have not had any problems with it knock on wood.
I like my MOBO (mother board) and I love the Water cooler. He is right about the i7 vs i5 with the i7 you will only use 30 to 40% of unless you plan on doing hyperthreading then you will need it.
Also the GPU the HD 6970's are very nice except if you are going to use more resolution than 1920 x 1200 then the 2GB Vram would be needed, but if you are not it is a wast of money It is just eye candy.
The reason I chose my MOBO is because it does either Crossfire or Sli. I wish you the best with your nice system I know you will be happy with it as I was.