Stop, take a breath.
Do some more diving first. Before you obstruct your underwater vision by holding a camera in front of you, let your eyes and mind adjust to this new activity. At 11 dives and completing your AOW, you might not know it, but you really have a full plate right now. Before adding to the multi-tasking list, know that "picture taking" uses up a lot of processing power in a diver's brain !
We are all eager to retain memories by taking pictures, we are all eager to share this new vista with our families, friends and work associates.
After maybe 50 more dives, you will likely look back upon the images that (at first) interested you and find them to be quite everyday and ordinary. There are a number of Squirrel Fish pictures on everyone's first photo outing
Take this time to learn to dive, learn to see and observe. It is also an excellent opportunity to window shop, ask questions, and learn about possible camera choices. Ask the photographers around you to demonstrate their cameras. Understand that they are quite likely to be in love with them, but try to remove yourself from their fondness and be analytical- this will only be possible as you talk to more and more users.
I like the Canon line very much (I have a G10), but some such models are designed for very specific niche uses. It will take you some time to figure out where you want to go with your u/w photography, and to a very large extent this will be tempered and dictated by your travel budget. Will it be 99% macro, or will there
really be a need for extensive wider flash coverage? If you are strictly macro, you don't even need one with an adjustable white balance, so for a starter camera you can go cheaper with good result. Here's how:
After you have done some research, look on eBay. Quite often you can find a serviceable used u/w housing. Even if the needed camera is obsolete, you can still find them on eBay for cheap as well. Olympus and Canon brand housing show up all the time, they go for little as the 5meg camera they house is a few years out-of-date. So much the better, as it makes them a disposable item if/when you do flood again.
If you haveta gotta have 12megs and lots of strobes, by all means, have them. Just understand what will work for you before you buy a Ferrari.