Alright well my 10 year old brothers birthday is comming up, and i have decided to build him a computer. I need to keep it cheap and upgradeable. All he is going to be doing is playing games like Rome total war, Alaxander, etc nothing very intens graphics wise. I have all the parts exept a Mobo and Cpu. I want to spend about 200 on them. So what would be the best for the money?