Ive been getting a lot of questions about how Ive been taking pictures/video underwater and I wanted to inform you that this is a fantastic set up. I did a ton of research on Point and Shoot Cameras before I bought my little Casio Ex-S10, and one of the requirements was that the manufacturer had to make a waterproof housing for it that would go down to at least 100 feet as I like to scuba dive. Because the EX-S10 also records standard and widescreen video, this combination was exactly what I needed. The Housing is a little bulky, but otherwise I am able to operate the camera exactly as I would on dry land.
Im often asked on which point and shoot camera to buy, and if a very small, compact camera is what you are looking for, I cant be happier with the Casio Ex-S10. 
Casio Exilim Ex–S10 Camera
EWC-120 Waterproof Housing for EX-S10
I want one 🙂
Canon makes scuba housings for many of their point and shoots. I have an old powershot s50 with the housing and it is great. keeps the camera safe and dry at the pool and have had it down to 90ft in the gulf in mexico without any problems. waterproof housings are great!
Hhhmmmm! Going to have to look into that. I have a Canon P&S……thanks for the tip