Wirelessly posted (Mozilla/5.0 (iPod; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5) Hello, I was going to buy the 3.1GHZ iMac, but I don't want to put down a lot of money on it. Also, I want to be gaming alot on it like bfbc2 and such. Is the 2.7 ghz, amd radeon 512MB, 21.5" good enough for gaming? The specs of the game is 512MB VRAM and 2Ghz. Also, If I put more memory into the Mac, will the game preform better?