If you want to get an all inclusive fishing package where they take care of everything from the flight to the island all the way to fishing rod holders in your hotel room then El Pescador(www.elpescador.com
)is the place to go . They are a bit North on the island but definitely worth the trip. They will cater to all your fishing needs. They even have a fly fishing "teacher" named Jim who will help you get the "double haul" down right. They have casting platforms on their docks so you can practice day or night.
Its a short boat ride to downtown AC where all the restaurants and clubs are.
I went back in Aug 2001 and it was definitely worth it. I will be back for sure.