Hi, I'm building a new computer, mainly to play games. I have picked out the parts already and was hoping you guys could give me some advice or suggestions. My budget is around $800 which has already gone up so that is the highest I can go. I'm still deciding on a case, but the Antec 300 and the Rosewill Challenger are my top 2 right now. I was thinking about getting a better GPU (namely, the gtx560 ti) but I decided it wasn't worth it since I really only play WoW and a few other games (portal 2, L4D2, etc.). Any comments/advice before I buy would be helpful, thanks!