Thanks for the replies. On a website I saw some pictures a person took with an underwater camera snorkeling, and they were amazing. In the past I've always purchased a disposable underwater camera even though I know it ends up being a waste of money - atleast I can not get them to take but a couple of decent pictures. Since I have several beach trips coming up and with a 4 month old digital camera now is the time to buy the underwater unit. I'm not into serious photography or anything, it is just nice to have some good picture from trips.
The comment about flooding the unit. That makes me nervous. Are there certain reasons why it would flood, or is it due to improper use?