I'm having a WP Beach Ceremony on August 31, 2009. I know two brides did it before and Disney sent me a pic of another bride. I just came back from my PS and have major updates to make to my PJ this weekend! I have to do a PJ report and I already have my post written about the Bridesmaids dress shopping, I just annoyed with Photobucket because it takes forever to post pics!!
I'll be back over the weekend to update my PJ, the link is in my siggy! I can try and help with any questions. I don't think there is any limitations on guest size I invited 50 people, but we are doing our BEO for 40. I think you'll be fine with 50.