Hello all, I'll be going to Hawaii in a few weeks, spending time on Kauai and Maui. I recently bought a Canon S90 and just got the underwater housing for it. In addition, I have a Kodak Playsport waterproof camcorder. Any tips on taking photos with a P&S (or, more specifically, the S90) while snorkeling? I assume the fish will be darting around, so I'll have to use a faster shutter speed. Should I just shoot in shutter priority? How about using the flash with the diffuser? Or should I just keep the flash turned off as I always do? How much closer to the object do I need to get in order to compensate for the magnification I'll be seeing through my mask? I'll be shooting RAW so that I'll have the most leeway for corrections later, but welcome any tips that will help me get the best shots. Thanks.