So I've been so excited about buying my 27 iMac with the 680mx or whatever and then looked at Assassins Creed 3 box art and realised that the shops ship them on DVD's. lol. I know you can buy games off Steam etc . . . but that takes away a lot of the price competition. . .it's much cheaper to buy games on DVD's and stuff. Is it possible to buy games on DVD's then use a MBP DVD Drive to install the game on your iMac using that air feature. . .or do games run off the CD meaning that on the new iMac you basically have to buy all your software online at full price. Thanks in advance.