Marc - I'm a Canon guy from way back and I absolutely love my 10D. Having said that, the D100 is a great camera. I shot with it for a few days a while back. In my opinion, the 10D is a better camera, but more because of the added features it gained being the newer camera (the DIGIC processor itself is what really pushes it ahead). But I don't think, as you said, the difference is enough to merit a complete system change. If you already have good Nikkor glass, then I wouldn't hesitate to buy the D100. Once you experience the convenience and clean frames that digital offers, it'll be hard to wipe that smile off your face. For me, digital also increased my love of film. I can shoot digital but then, when the mood strikes, shoot film and it doesn't feel like as big a pain in the butt to work with anymore. :) -=>Donald