At my last shoot I met a photographer who had one. That big LCD screen is to die for. I'm 43 and it can be tough to see the 20D's screen. However, I'm blessed with nearsightedness and can lift up my glasses to be able to easily see up close. Still, that preview screen is something else.
On the other hand, the 40D is still not a full-frame.



40D is still a great camera. and I like not having to lift up my glasses to see my little lcd 

