Hi dfromyyc
I now use a digital camera for my underwater pictures, and find it much more forgiving then when I use to use 35mm with my Sea & Sea.
I started off with buying just a housing for my Sony P9, this is relatively cheap camera and a relatively cheap housing as well. The results were o.k if you were diving on a 10-12 metre reef with good sunlight.
Sample of picture I took with a P9.
On an average dive I took 70 to 80 pictures, then deleted the majority of them when back at the hotel, as they were crap. There is obviously no way of doing this when using 35mm, with digital there is no waste and not the expense of having rolls of film processed, just for a couple of decent pictures (if you are lucky).
I have kept my P9 & housing but also upgraded my camera to a Canon 350d with an Ikelite housing which enables me to dive to 60m, which is more suited to diving in the U.K. Again this gives me the option of using the camera for diving and normal use.
Here is a link to some other pictures I took last time in Cuba with a P9.
http://www.7daysinparadise.com/gallery/album18