Update I got a RC GoPro Hero Camera and it is small, waterproof and light, details below
also photo of it in my hand for a scale referance. (It is small but powerfull) about $200 in Canada
less in the USA.
The new GoPro R/C HERO lets you see the view from behind the wheel of your R/C car, plane,
or boat in full TV-resolution video. This miniature, waterproof, shockproof camera mounts easily
using the supplied self-adhesive mounting plates and quick-release brackets to capture a
driver’s-seat view from your favorite R/C machine.
R/C HERO’s 170-degree wide angle lens captures all the action with 30fps video, or choose still
mode to shoot 5 megapixel photos. R/C HERO can be set to shoot a still photo every 2 or 5seconds
for time-lapse photography, or select ‘burst’ mode to shoot three shots at a time. Offload video or
stills to your computer using the supplied USB cable, or plug R/C HERO directly into a television
using the included RCA adapter for instant viewing. Two lithium or NiMH AAA batteries* (not included)
power R/C HERO for up to 2 hours of video capture or 1400 still photos.
With its waterproof polycarbonate housing, R/C HERO is perfect for boat applications.
have fun it is a great little camera, waterproof to 200feet, so it will survive any sink your ship should be in.