The Sanyo Exacti E2 is the only way to go. 60fps, 8mp, cheap, reliable. I haven't had any problems with it at all. Invest in some extra after market batteries at $10 a pop and you're good to go for all day action.
The "Seasucker" camera mount has been great, sticks to almost anything smooth on the boat. Lots of positioning options, can run with it stuck to the hardtop.