Looks like no one has answered your question so I'll jump in here. I haven't been married at CSA but have been there numerous time and the plan you have outlined sounds perfect. My husband and I perfer to go to Feathers for dinner on Friday nights and skip the beach party. I'd suggest you get a 6:30 reservation at Feathers and then after dinner join the beach party for the show. The show has a real carribean flavor with steel drums, fire eaters and lots of other interesting local acts. After the show head up to the Aura lounge and dance the night away.
I hope you wedding day is full of happy memories. You've certainly picked the most romamtic place in Jamaica.