I love my 2012 iMac - it's beautiful, performs great, and does everything I need. Still, I'm intrigued by the results I've read about from overclocking the GPU, and I'm just curious how one would go about doing that. I'm pretty tech savy, but I have no experience whatsoever in overclocking. I understand the concept and what it does, but not the methodology. So what I'm wondering is, is it worth overclocking the 680MX on the new iMacs? How great are the results, how hard is it to pull off, and is it going to turn my beautiful machine into a brick? I have no problem monitoring temperatures now and then, but obviously I don't want to have to think too much about it when I'm just trying to enjoy a game. So, could someone with some experience in these things give me a few pointers? Thanks!