Which new model? I've only heard of the 5dIII which is already out and the new 1D which just got announced. Is there a rumor that the 60D or 7D is getting replaced soon?
A couple of things I don't like from playing around with a 7D:
1) I found it hard to select just the center point for AF selection. Seems like it requires 2 button presses - hit the + button and then the multifunction button then select the focal point? I never actually got this to work while playing with it, so I'm not sure if it will remember this setting after you turn the camera off. With my 20D, I compose with the center AF point, hold the shutter button to keep it locked and then compose the shot by moving the camera. I hate having to keep pressing the shutter button to get the camera to randomly select the point I'm trying to focus on. Probably not a big deal if there's plenty of light, but when shooting wide open the DOF is too narrow to let the camera pick a focal point.
2) Live view: I also never really got this to work. I'm use to using the viewfinder, but it would be nice if the live view was also automatically on - again when using a small DOF/wide open lens it would be cool to be able to quickly check the focus with the 10x magnification. Ideally, I'd focus and compose using the viewfinder then just glance quickly down to see the 10x magnified focal center point on the LCD and if it looks good, hit the shutter button.