Do you have your heart set on any certain resort? If so, I would so go ahead and book a room only reservation. You can change it over to a package or have the room only price adjusted when the 2008 rates come out which should be pretty soon. Lots of posts have said August 5th is the date they will come out.
We've stayed at the Caribbean Beach Resort two years in a row and loved everything about our 10 day stays.
In June, 2008, we are staying 10 days at the Wilderness Lodge. When I called Disney reservations, they said there are a limited number of standard view rooms available at the Wilderness Lodge. We had our heart set on the WL so I went ahead and booked a room only reservation so I would be assured of staying at that resort.