i have already got a case keyboard mouse and monitor, the only problem is i stopped following computers a few years ago and it seems that things have come a long way creating many options, i just don't have the know how or time to figure out the best configuration so if you could help me out i would greatly apreciate it. the games i will be wanting to play are World of Warcraft, Diablo 3, and destiny when it comes out. and once again my budget for this project is only about 500 to 600, i'm not too worried about playing on ultra settings as long as i can play medium settings without lag. thank you in advance if you are able to help me.