I had a chance to go look at the 40d and the 5d today. I have decided I will be getting the 40d instead of the 5d. One factor for me is that would loose a lot of focal length with the FF 5d. I have to say the 40d was Amazing. The feel of that camera was so unlike canon. It feels perfect in my hands. I don't think I will use the live view, but the camera is pretty intuitive.
I think it will be a nice step up from the rebel xt I currently own.

I really liked the feel, handling and custom functions. I also didn't want to loose the reach. I don't think you can go wrong with either, but for me it was the features of 40d that sold me.
We'll let it recoup a while and see when a 5d replacement comes out.
