Hello everyone! I am fairly new to Apple's world, and I used to be a ardent Windows defender! Working in the IT industry and all! I switched to a iMac very recently, bought it used on Kijiji, very good machine, i5 2.5, 8gb memory 1333mhz, ati radeon 6750m 512mo, 500go hdd 7200rpm. My main question is... Is it worth selling this machine to upgrade to the late 2012 model? Please don't hate, but I am a gamer at heart, and I can't simply stop gaming on my computer! So far, I am not too displeased with my iMac gaming performance (I.E Diablo 3, Starcraft 2, WoW, Stronghold3, Alien Swarm, CSGO, and much more). Is it worth it to upgrade my iMac for the late 2012 model with the GT650m video card? My other question would be, can my iMac overheat from playing video games? I can't seem to find any fans, nor hot air outlets! Thank you!