I do a lot of photography on or around the water, but don't really want to spend $3000 on an Ikelite housing for my Nikon dSLR. OTOH, my good ol' Canon SD630 point-and-shoot doesn't do too bad (in good lighting situations). I just picked up a Canon underwater housing for it, and I gotta say, I'm impressed. It's very well designed, all the controls are completely functional, and it's easy to use. They're about $160 - a reasonable price IMHO.