A few years ago, I bought an Oly EPL2. While I liked the images I got with it, I really missed the viewfinder. I sold it pretty quickly and went back to using my DSLRs, as I couldn't afford to have both systems at the same time. For the record, I've used both Pentax (currently) and Canon systems. Fast forward to this last summer where I picked up an Oly TG-4 to use when snorkeling while on my honeymoon. What attracted me to it was the ability to shoot RAW. I was quite impressed with the results I got shooting both on land and under water. I've really enjoyed using my Pentax system, but a K5 + Sigma 17-70 can get rather heavy to carry around. I bought a KS1 for the honeymoon and paired it with the 17-70, which was better, but still a bit bulky to carry around. After looking at the OMD bodies, I'm thinking that this is the way to go. Before I totally dump all of my Pentax gear, I've decided to rent a M5 + 12-50 for an upcoming Thanksgiving trip to see how I like it. Assuming that I do, i will be telling Pentax bye bye. The only thing I don't look forward to is actually selling the gear--a royal pain in the butt. A final thought...I can downsize my tripod too!