Best cheap build for gaming desktop?

I want to play minecraft and smite and other games like that I also want to be able to run steam

You can put together a parts list for a gaming computer for about $850 or so and they are quality parts. A somewhat reasent build I did used
Case: Cooler Master Elite 500 blue
Motherboard: ASUS P8B75-m
with a matching cpu
Corsair 500 watt psu
I copy of windows 7
1Tb hdd from western digital blue edition
and some graphics card which I can't remember.

Define "Cheap".

For one person, $500 is expensive, but to another, its pocket change.