Shadow, I think he's talking about video cameras.
1shot, I think you're local to me(San Jose, CA). I have 2 minidv setups you may be interested in. One is a Canon minidv with housing & activ-eye. The other is a Sony PC100 with a Light & Motion Mako housing with monitor back. Send me a PM if you're interested.
If you rather get a cheaper but new camera/housing combo I have some ideas too
Send me a PM.