Our wedding in Dec 2011 and we booked our rooms in Feb I think? Basically super early, we figured why not. I just emailed our coordinator (Griselda) this week asking how soon we should start going into details. She emailed back with the "planning form" where we mark down our menu choice, locations, music options, etc etc. I'm going to email it back to her shortly but in reality, it doesn't seem like it matters that much. I get the impression that you go over all these details again when you arrive at the resort.