I started out with a rebel, and its basically the same as my 30D. They are very good camera. the only reason I switched to the 30D was because Im clumsy and my X-wife thought I would be better off with a metal frame camera. Sometimes, she was soo smart! :)
And, since you went with Canon, if you want to try out any of my lenses just let me know. And as with everyone else, id be happy to answer any questions. Sooo, lets see some photos!