I just bought an Olympus 725sw (waterproof 7.1mp 3opt zoom) for jet skiing, I wish Stu sold them, however he only deals with Canon so I had to go to the competition.
Anyhoo looks like a good camera so far, I have purposely dropped it to test out the 1.5m shock rating, seems to still work.. Next thing to do is the "hitting the water at 105km/h test"