I am building a gaming pc for playing high end games like bt4 1080p ultra, I am thinking of using a amd 6300fx cpu, and 8 gigs of ram but i am undicided on whether to use a r9 270x gpu or 280x, I may also need more than one fan in my case i'm not sure.
if you have the money pick up the 280x. some are on combo sale on parts picker right now. if you have the money use a h97 mb and a locked intel cpu. the intel locked cpu are better gaming cpu then amd for the money.
also most newer case now come with two fans. one in front pulling air in and rear fan blowing out. look at the r200/r300 cosair cases.