My previous camera was (still is!!) a Canon EOS 50E, so when I decided to go digital the choice was easy - buy a Canon or replace all of my lenses!

Not wanting to make the jump straight to a "semi-pro" I opted for the 400D, and haven't regretted it once.  It has all of the feautures & abilities that I require for my (mostly landscape) photography, &  crucially it has the ability to save RAW as well as jpeg.

I echo the comments above about handling before buying.  I have quite large hands, and one review that I read said that the 400 body was too small, with awkwardly placed controls for those with larger hands.  I can honestly say that I have never found that to be an issue - all of the controls fall easily to hand, and I find the camera easy to handle.

So would I recommend the 400D - unequivocally, but I wish they hadn't brought the 40 out so soon after I bought it!!!!  :-)