Keep in mind you do not need to wait for the rates to come out to make reservations if you call them. When I made my reservations for 2008 last month the lady said they should be out in August, but that was all she knew.
We added a few days to our May 08 reservations last weekend and the CM quoted $75/night for a preferred loop sight. Ouch, it seems like not long ago it was $48/night.
I just made ressies for Jan '08. The cm said the rates would come out mid August. When the new rates come out, they'll contact me to let me cough up the difference.