Re: post how ur desktop looks like
you are just taking it from the point of view of if mac can handle games. agreed it cannot. not many games available for mac as well… however mac is a very professional machine and people do not buy it for games… there is a niche market for mac machines.. professional use it especially the media related industry professionals! 
for you of course windows will be best because you are not going to edit something or compose a piece of music or anything… you want to play games and windows does it better no doubt…
i love to play need for speed undercover on my gaming pc at home 