Hi all
I thought I'd share a little project we've been working on to modify a nikon infrared remote to work with a polecam system using a Nikon D300 and ikelite housing (it should work with any compatable Nikon DSLR). While it's not as fancy as others with monitors etc, it provides really good control of the camera focus and shutter and is not too expensive to put together. We've done a few trials with it now and so far it's working great.
Check it out here http://gjwest.wordpress.com/
Enjoy
Greg