Sure, it's a great camera - if you don't ever take any pictures inside...

The upgrade to the Rebel is a worthy one - and for the money it's an excellent value. Even with the new Rebel, I'm still more then happy with my 40D - the controls alone are worth it to me. In the Rebels for several settings (like ISO) you have to go into the menus/LCD on the camera - with the 40D everything is available from buttons and the two dials - you don't have to take your eye from the viewfinder in order to change just about any setting. I've taken a class with both the Rebel and my 40D, and the advantages of the 40D's controls are VERY apparent when you have both and are doing the same thing with both bodies.

There are lots of other technical reasons why the 40D is still better - then again it costs almost double so that only makes sense... just depends on what you are looking for. If the 40D is in your price range, do yourself a favor and check it out. Don't just get dazzled with the specs of the Rebel - megapixels alone aren't the whole story

My only complaint with the 40D? It's not weather sealed. That is a bit of a pain, and at the price point I don't think it would have been too much to ask from Canon. The successor to the 40D will probably fix that - doesn't matter enough for me to upgrade, but it would have been nice.