So I was looking for a good budget build for gaming, and I decided on this: AMD FX 4300 3.8 GHz CPU, GTX 960 2GB, 600 Watt Corsair CX600, 8GB Kingston Memory, and a motherboard I already bought which I know works with all these components.
The parts are OK, but it would be better if you change the AM3+ platform for a FM2+. Use the Athlon 860K, it's faster and cheaper than the FX 4300 (same with the MoBos, are cheaper than AM3+ ones).
Out of that, everything looks OK.
Where are you from and what's your total budget? Maybe i can suggest something more specific.