My husband and I have enough miles to go diving somewhere in the Caribbean/Central America on USAir. This will be our 4th dive drip (we've been to Little Cayman, GT and Coz) and we're interested in something with a bit more topside activity than the islands we've already visited (e.g. hiking, restaurants). Any suggestions? Advise as to dive ops and resorts also appreciated. Although we don't necessarily need a 5 star hotel, something really nice would be good -- since we don't have to spend money on plane fare, we have some extra money for the resort! Also, if you could tell me what the diving is like on the island, that would be helpful (we've only got about 40 dives each). Thanks!