My friend is going to build a gaming PC finally. His budget is About 1000 He doesnt need Windows 7, Optical drive, or monitor. And I have built a plethora of PC's for people so I can help him build it, but My PC, when I built it, was 1500$ and most definitely NOT very price effective. PCPartPicker part list / Price breakdown by merchant / Benchmarks
Keep in mind that MicroCenter's price for a 2500K is an "In Store only" price, meaning if you do not live in driving distance from a MicroCenter store, you're not getting a 2500K for $170. They're $220 anywhere else. Other than that, yes that build would be pretty decent.