Our ceremony is at 4:00 too, my photographer said it will be fine for pictures, I think the ceremony only lasts about 20 - 25 mins anyways.
I ordered plane ticket invitations and got the sample a few weeks ago. I am picking up all the invitations this weekend, and sending them out next week, which is a year before my wedding.
I got a quote from Dec Cancun - it is very expensive but the pictures are impressive, so I think I am going to go ahead and book that!
Has any one decided on if they are getting a DJ yet?