Guys, I feel like a kid at Christmas. My local Apple store has a few 27" i5 iMacs in stock today... BUT...I feel like maybe I should wait and just order an i7 online. What do you think? The only game I play is World of Warcraft (and Diablo III when it comes out). I don't edit video or anything else to demanding. This will be my first Mac!!! Advise please!