This sounds like a cyberpower build.
1) For gaming, the stock 3570K is much stronger than any of the graphics cards you are listing. It has no need of liquid cooling for any normal overclock. A simple $30 cooler like a cm hyper212 will do the job. It will be quieter and more reliable.
2) Be wary of cheap generic power supplies from cyberpower.
3) Buy the best graphics card you feel comfortable paying for. The graphics card is the most important component of a gaming rig. Use this article as a guide: http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107.html
A GTX670 would not be inappropriate with a 3570K.
4) With your budget, I would include a 120gb or larger SSD for the os and some games.
Intel and samsung are the reliable brands today.