Ok, I started out with a Nikonos V and I'm still using that. In the meantime, I am experimenting with the coolpix line. So I started with a coolpix 2100 and a CP-2 housing last year. First thing to do is to take it in the pool and try the thing out right?
I got three photos off before the thing flooded in less than 5 feet of water. The camera was toast, but I saved the batteries and the compact flash card.
Used the warrenty and sent the camera and housing in. Nikon coolpix 2100 are hsitory, so they eventually replaced the camera with a Coolpix 4300. 8 months later, the CP-4 housing arrives as a replacement. I dropped the housing (empty this time) to the bottom of the pool (8 feet) for 24 hours. Next up this week is trying it with a camera in the pool.
If that works, it will be my backup camera for a while.