Hello cwtn and welcome to the board. While not the best u/w water photographer, I have shot a few rolls. UW photograhpy is a lot different than topside. It is almost impossible to get good photos at any depth, say 10+, without a strobe. That being said, don't consider any camera that does not have an EXTERNAL strobe, the internal flash usally makes things worse. You will want one very soon after you start shooting uw so it's best to go ahead and get one in a package and save a few bucks. You will sooner or later want to add extra lens like closeup and macro lenses, so again, limit your selections to cameras that offer them as accesarys, they are not as important as the strobe in the beginning but I can assure you, you will eventually want them. Try doing a word search on this board and look at some of the earlier posts, this question has been addressed in several threads.