I just ordered a 27in iMac. It has the high end i7, 512GB SSD, 32GB RAM, the gtx 680, basically it is nearly maxed out. What games am I going to struggle playing? I just want to know what the max point of its gaming usability is, whether in OSX or using bootcamp. If someone can tell me what games are absolutely just too much for it to handle on max settings, that would be perfect.