I recently broke my SD200 (was getting bored with it anyways) and narrowed it down to the FX9 and S500. I like how the S500 is tiny and seems to have a really fast focus and shot to shot times seem really awesome. The FX9 has optical image stabilization which is nice for those quick moments and night time, but is a bit slower where you might miss those quick moments. I've been reading all the reviews i can find on both, but haven't found any good direct comparisons. What do you guys think?