Not sure if you have checked Bahamas Finder yet but they have a section on weddings and have vendors that you may want to look into. Visit their site http://www.bahamasfinder.com and using the drop down arrow on the right go to Nassau and they have several categories under the title Weddings that may help you. Mario Nixon is a great photographer, I have seen him in action and he is very personable. Another one that comes highly recommended is Ben Jamieson. I can't really help with the DJ situation. I don't know about any highly recommended DJ's in the Bahamas but if you go to Bahamas Finder and search through their clubs listings I'm sure a DJ from one would be more than happy to help with your wedding. The best way to know if the Powerboat Adventures tour offers group rates is to call them. I checked around and couldn't find any information on group rates as well. Here is their local number 242-363-2265. Finally, a good rehearsal dinner location depends on how much you are willing to spend. I know Atlantis offers packages but is extremely pricey. Other good places are Breezes, Sandals, and Graycliff. Sorry if this post comes a little late, hope your wedding turns out great!