I already own a Casio Exilim Z3, which I use in everyday point-and-shoot pictures. This was the first digital camera I owned, and is what got me to be more serious about photography. Now I'm considering another camera in order to help me learn the proper techniques and concepts of photography. I've read great reviews on the 35mm SLR Canon Rebel Ti, and it is something I can afford. Getting another digital camera that is better than the one I currently have is probably out of my price range. So should I keep learning w/the Casio, or get a 35mm film SLR to add to my photography education?