I am so excited for you, Susan!
I also feel like I'm talking to the mirror (first time out of the country, refuse to deprive myself on vacation, HAVE to get my $$ worth!)
The main advice I can give you about the resort is to request the "new" side. One side of the resort has been renovated and we weren't on it. Don't get me wrong, it was still beautiful but when we compared notes with a few other guests, we realized it was probably worth the little bit extra to be on the renovated side.
The breakfasts are incredible! Also, dinner in the "fine dining restaurant" (included) was a nice alternative to the buffets.
A note on snorkeling: we had a lot of fun on the snorkeling trip offered from the resort. My advice: drink LOTS of (bottled) water. I think the combination of margaritas and floating in salt water all day did me in for a good dose of dehydration.
Wow, just talking about it is getting me all excited again! You are in for a great trip. The water is perfect and the staff at the resort couldn't be better.
Have so much fun and live it up!