I'm on the verge of ordering a 27" core i7 iMac but was wondering if anyone has any indication whether we can expect a minor update in January. I know that Apple has given models a slight speed bump in the past, and I know that there is a faster i7 chip out there that could potentially be thrown into the iMac, but what do people think the chances are that that happens soon? Also, does anyone think that there could be a second video card update for the 27" iMac as well. I just wanted to get some thoughts on the topic before I commit and push the order button. Thanks.