Will pretty much max out every game you're looking to play Let me know if gaming isn't very important or something, can adjust, but this is a great gaming build for your budget
i5 4670k
Sapphire toxic R9 280x
MSI Z87 GD65 Gaming motherboard
2x4 8GB G.skill Ripjaw X series Ram
XFX 750w 80+ Fully Modular PSU
1TB Seagate Barracuda 7200RPM HDD
(Soon to come H100i by corsair! Few weeks Ill get that, So count that was in)
All in one Fractal Design Define R4 pearl black with window.