I know this is an old thread but I just came back from the Aqua Cat Bahama trip which I mentioned in post #9. Just wanted to update on my experience because of the talk about the quality of diving in the Bahamas...
First the Aqua Cat was wonderful. Spacious, great crew, clean, good food and a very well run operation. Crew genuinely seems to want to please everyone. Diving-wise, not so good. Only a few sites were colorful with enough fish to seem interesting unless you are really into coral/plants. Me, I like to see fish! On average, the sites seemed like ghost towns. Devoid of the usual amount of fish you would see on a normal Caribbean dive. For me, it really seemed strange.
That being said, it would depend on your own experience, whether you would enjoy diving the Bahamas. I've been on many Caribbean dive trips and a couple trips out to Indonesia. Some of the newer divers on the boat really loved the experience. My friends as well myself probably would not dive the Bahamas again. We all enjoyed our trip but there are many other places for the same cost that would have more enjoyable diving.