You may book a Room-Only Reservation by phone (407-W-DISNEY) up to 499 days in advance of your travel dates. For example, if you call today October 26, 2007 you may book a stay for any dates up to March 8th, 2009 based on availability.
For any travel dates on or beyond January 1st, 2009 you will be quoted a non-guaranteed rate based on current 2008 rates and seasons. A deposit of the first night's lodging will be required within 14 days of booking, but you are welcome to pay any amount up to the full cost of the reservation.
When the 2009 room rates are finalized (sometime in July/August 2008) you will receive a revised confirmation showing your new nightly rate and total reservation amount. You will have the option to cancel the reservation anytime up to 5 days prior to arrival without penalty.
You will also be able to modify to a Vacation Package once the 2009 Packages are released (sometime in August/September.) Holding a Room-Only Reservation will guarantee your room availability when converting to a package.