If your purpose is gaming, I suggest you reverse your cpu and gpu budget.
Use a 3570K which will actually perform better and cost less.
Up the graphics to a GTX760 or GTX770 which has come down in price.
A 500w psu can handle a GTX660, or a GTX760.
But, a 600-650w unit should not be more expensive. With such a psu, it will not need to work so hard under load and be quieter. If needed, 650W can run even the strongest GTX780ti or R90290X in the future.
Your i7-3770 can not be overclocked; there is no reason for an aftermarket cooler.
If you use a 3570k(or 4670K) then buy a air cooler like a cm hyper212.
I would defer on case fans until you actually see if you need them. With most cases, you will not.
To address your "waiting to open" comment, I strongly suggest a SSD.
120gb will hold the os and a handful of games. with 240gb, you may never need a hard drive at all. I suggest you defer on the hard drive until you need it for bulk storage of video files or backups.
Samsung EVO would be my preference. Intel would be next.