...or, if you like the features of that motherboard, get an Ivy Bridge CPU, like the i3-3240. The performance difference is slight.
The PSU is also bigger than you need; a 450W version (XFX is a good brand for PSUs; all built by Seasonic) is enough for a GTX650, or use the savings to get a GTX650Ti (Boost Edition if possible).
Edit for clarity: the savings from getting the 450W PSU will pay for the better graphics card, which will also run on a 450W PSU.
GTX650 <= HD7750 < HD7770 < GTX650Ti < HD7790 < HD7850 <= GTX650Ti Boost Edition
It's a P8Z77 not P8277 and it's not compatible with your CPU. Everything else looks fine. Although, I do have a couple of suggestions for you. The RAM you chose is only 1x 8Gb stick. Try to get 2x 4Gb sticks and dual channel them. This will help performance. Also, a Radeon HD 7770 GPU is better than the 650 and also priced slightly cheaper. And a final small thing, try to get a Seagate or Western Digital hard drive instead of a travel star. They are a lot more reliable than those silly HGST hdd's.