Hey all, I just bought a 27" iMac (intel core i7/3.4 Ghz/Radeon 6970m graphics card 1gb) less than a month ago and I was told I could send it back for a full refund so I can buy the new iMac in December. My question is: Is it worth trading it in for gaming? I have run most games just fine with my current setup (diablo 3, starcraft 2, etc. (though I have not tried any graphic intensive FPS games yet). Is the Geforce GTX 675mx or 680mx really that much of a graphical leap over the AMD Radeon 6970m? Don't know if its worth the hassle of not having a computer for almost 2 months and I still don't know how much the upgrade will cost to a Geforce 680mx (if any one knows the cost, please do tell). Any input would be greatly appreciated?