OK.
The CPU is fine.
If you have any interest in overclocking, and you probably will to get more CPU performance in demanding games, you need an aftermarket CPU cooler.
Although the CPU will fit in that motherboard and run, the power phases are quite weak and if you try to overclock, you risk damaging the motherboard and thermal throttling of the CPU. The Gigabyte GA 970A-UD3 or UD3P would be much better.
Peak power consumption for your GTX 770 GPU card
http://www.tomshardware.com/reviews/geforce-gtx-770-gk104-review,3519-25.html can exceed 230W. Combine that with your 125W CPU and other parts and we are looking at close to 400W. For that load I would consider a really good 550W PSU. A 620 or 650 W PSU by Seasonic or XFX or some EVGA units would be better.