Good gaming computer build for $500-$700?

I usually only play a handle full of MMORPG'S like games from Nexon and Minecraft and other games in that kind of category. Not saying there's a "best" gaming computer build but what are your oppinions on what build I should go with. I would appreciate it if you could list the items and the price of the things that you recommend so i can do a little research before i do go out and buy the materials needed. I'd rather build it myself but if it is more convenient to just choose the items you want and have someone build it for you then I could look into that.