Hey Smiley,
I've gone to Port Antonio the past couple of trips and it is a really chilled and laid back scene. Boston Beach, Reich Falls, Errol Flynn Marina are all positive experiences. I'd definitely recommend a visit. I agree with JohnG Port Antonio is a long haul from Negril. I'm sure it's a beautiful ride but that's a lot of potholes. Everytime we've gone to PA we've flown into Kingston to shorten the taxi ride. If you end up going to TB please post your thoughts. The wife and I are flying into MoBay and heading there in Mid January for our first visit to TB that is longer than a day trip. I'd be interested in your thoughts of the area and any recommendations if you have the time to post them. Safe travels.