Hello all, I'm looking to buy a new iMac, was thinking either the iMac 21.5 or 27". I was wondering why these iMac's arent on i7 but on i5 (is there a big difference?) and is it worth upgrading the drive to fusion? Also, should I wait for a new release of the iMac or go ahead and buy one now? I do also want to use this for gaming, I play Diablo 3 and League of Legends. I also edit pictures so I have big programs like Photoshop, Lightroom5 etc running. thanks everyone.