value conscious, somewhat tech savvy
I traded up from the Canon 20D to the 40D and I think on of the best improvements is the larger viewfinder. As with the pre vious model the 40D is eas to use and now has auto sensor cleaning. All lenses and accesories you may have had before can be used with this camera.
The auto focus works well, the menu is user friendly.
My only complaainy is it is a little heavy, but I think this is true of most DSLRs.