I am fairly new to the thread also. I've been looking up lots of ideas and advice. Unfortunately, I got a late start scoping out BDW and I did a few things backwards.
I made the travel arrangements for my fiance and myself through Apple before I invited anyone else. This is the second marriage for both of us so I didn't think people would be really interested in coming to Mexico to watch us get married. I was totally wrong. Right now we have approximately 30 people who have put down deposits with Apple and I just sent out the official invitations last week so we will probably have a few more. In hindsight, I wish I would have worked with a coordinator to get a group rate before booking. Thankfully, the prices we are getting with Apple are amazing even though everyone is booking separately. I just feel nervous that is isn't more of a coordinated effort with one person working for all of us.
Also, when I first booked my finance and I wanted to keep things really simple so we just booked the "Our Moments" package. Now I think we will need to upgrade because of the number of people going and I think my expectations have changed drastically from initial booking. I know everything will be wonderful in the end, but I just wanted to post my experience thus far. I wish I would have found this sight sooner. It has so many great tips, suggestions, etc. I know I would have done things differently.