It's kinda hard to recommend anything because you didn't specify your needs. Is it gaming focused or is it computing focused? Are you going to be overclocking? If yes, what is your cooler? You didn't specify it in your SigRig. But if I'll give you everything, anyway. Overclocking (Click to show)
Not Overclocking (Click to show)
GPU: Gigabyte GTX 770 4GB
That will leave out 215$, and you do what you want with 'em. You know, if you have money, you don't HAVE to spend it. You can save it up! Or you if you really want to, then, well, save up and get yourself another one of those GPU's. Or maybe a CPU cooler if you're overclocking. If you are, well you have two cooler options that won't destroy the looks of your system or get into your RAM's way:
If you want slightly better performance and a bit quieter cooler but lacking superb lights and looks: ThermalTake Water2.0 Extreme
If you want slightly lower performance and a bit noisier cooler but with superb light and looks: Corsair H100i
Don't get me wrong, the H100i and the Water2.0 are both extraordinary coolers.