Well couple of months ago I build myself a new PC.
CPU: AMD FX-8320
RAM: Corsair Vengeance 2x4 GB 1600Mhz DDR3
MOBO: Asus M5A97 R2.0
GPU: Gigabyte 560Ti 1GB
PSU: Corsair GS800W
HDD: Some crappy old Toshiba 1TB...still working though.
So far no problems whatsoever. I even played Witcher 3. You can get a cheap 8320 or even a 6300/6350 CPU and you will still be fine. Biggest advantage - you can multitask a lot. I don't know your budget but I will definitely suggest getting AMD 6 or 8 core CPU Hope that helps