I'm not a current iMac owner, but a forlorn, and somewhat disgruntled, Mac Pro user. I like the idea of having everything crammed into the screen (though I do worry about the heat), but I've never bought an iMac because I've suspected that it just didn't offer the power I needed for serious video work. However, after waiting for so long for an update, I can feel myself being seduced by the iMac, and I may just give in and by an AIO, if it meets my expectations for a high-end desktop computer. So my question for the Pro users lurking about is simply, what will Apple need to bring to the table this Tuesday in order for you to not wait until the (somewhat mythical) 2013 Pro update? As I said before, I like the idea of something smaller (not a smaller iMac, but smaller as compared to a workstation), but it would need a decent video card, and the ability to upgrade certain features. Of course, it also would need to be a decent price, I can't justify a $3500 iMac, even if it means another six months of God-awful render times. So what would it take for you to abandon the tower?