I have been researching cameras for 2 months now. I own a Canon Rebel Ti film camera (6 +/- years old now) and it takes fantastic pictures. I have taken wonderful travel, landscape, winter scenes, action, etc. with my Canon and have been extremely pleased. I have been looking to upgrade to a digital. I have been leaning towards the Olympus Evolt E510 (or E410 depending on my budget at time of purchase.), even though my Canon lenses will fit a new Canon digital. You are correct the lenses can be quite expensive buying the Zuiko, however, it looks like their are other lenses that can fit. Sigma and Panasonic also make the 4/3 lenses. I also found where someone used a Opteka macro filter lens(?). Check out imaging resource, dpreview, pop photo, etc. Also, B & H photo has always been helpful answering questions even when I do not purchase from them. Good Luck. Jenny