When I was booking my package, the CM at Disney Travel told me that the full payment was due forty-five (45) days before you leave for our trip. In my case, our trip is for October 20, 2005 through October 23, 2005 and I booked it on September 2, 2005 (it was an unexpected, but exciting trip). The CM said our full payment was due on September 5. I can't wait to go! Only 1 more day until we travel to Orlando!!!