I'm going to be crazy and try the E-PM2 at my son's next soccer game v. the D300+70-300VR combo. Can't decide between the 45-150 and the 40-150. The Olympus is cheaper and gets lots of compliments on it's image quality, and is much maligned about it's cheap plasticky build. The 45-150 is physically smaller although a little heavier, better build, a little more expensive, and has OIS. What has me leaning towards the Panasonic is the E-PM2's ability to use the OIS. I'm thinking the OIS will out perform the E-PM2's IBIS, though I have no evidence beyond my personal belief. Anyone who has used both (or either one for that matter) that can give me their opinion between the two?