Anyway , as Leshma already said, you should rather go for a Seasonic PSU , and forget all the other shitty brands with their weird labels and stuff . The 80+ doesn't mean that the PSU is especially well-made, it's also about securities and capacitors' quality
About your GPU I've heard that the 4xxx series from intel are out since a few days, but still I don't really know what they worth . According to your budget , you should go for a 3570k, that is slightly cheaper and doesn't make any differences with the 3770K in video-gaming. The 3770K will help you in the case that you are a confirmed "movie-maker", it'd make the encoding times shorter, it gives also some small advantages in other domaines, but won't help you at all in video games, check the benchmarks .
Also I recommend you to get a good heat sink for your CPU, if you wanna overclock it , even if it's a bit useless with such a rig. You should go for an Antec Kühler 520 or a decent noctua heatsink. If you are obsessed by your computer you should really get a Good CPU cooler in any ways.
About your case, it's ugly and it doesn't seem to be that efficient. You should go for an Antec Case such as P280 or a good cooler master one. OR A FRACTAL DESIGN R4, as I have , which is for me the best case ever released.
To conclude, if you take a 3570K your GPU would be perfectly fine , you can also take a look to the GTX660ti that's also a pretty cool GPU.