Greetings, I am in front of dilemma. Planning to buy 27 inch iMac. I am already pretty sure I will purchase the iMac with 2GB of 6970M as I mainly look it for gaming, but surfing in the Internet I found that the optional i7 has much better results. Will I notice these benefits of i7 in games for example? I am sure the 6970m 2GB should not stop anything, but would the i5 2400 do so? If its like 3-5 frame rates difference then I would think. I have chosen this setup, because its +100 for 2GB 6970m, but +200 for i7 upgrade, which I consider quite expensive if I wont see any difference in gaming. Also, would the 6970m 2GB overheat any way more than 1GB version, because I wouldn't like more noise of fans. Thanks in advance.