Thanks again everyone.
Hung - so far I am quite pleased with the 40D. I probably wouldn't have upgraded from the 30D but I really had no choice. I like the larger screen, 2 second timer, and it could be my imagination, but it seems to focus faster. It's been so cold here lately I really haven't had enough time to really play with it. I know the 20D is a good camera (my friend has two) but it would probably be a nice upgrade for you. You can always keep the 20 as your backup.