[DiverDude]

I'd take a look at Cannon. I have an older setup but Cannon is one of the few companies that makes underwater housings for a number of their cameras. The housings are very reasonably priced (at least compared to companies like ikelite) and are quite well built.

I'd suggest you research which cameras have housings available and then select a camera. You'll find the cameras that have housings also have underwater modes that correct for colour etc.

The benefit here is that you have a regular point and shoot camera for surface work and then you plunk it into the housing when you dive. It's a good idea to have separate memory card for surface and underwater -just in case the enclosure ever floods, you still have all your holiday pics.

For diving, yes ! you'll always have more fun on scuba than a snorkel ! My advice is to take a class before you leave and get all the theory stuff done. Then do what's called a 'referral dive' when you arrive somewhere warm. Not only is it FAR cheaper that way, but you don't spend precious vacation time sitting in a classroom !!