We're doing the same next summer. Check out the Dolphin's before and after cruise rate. I'm thinking it is about $149. If you are in the Disney Club, also check entertainment rate, it may be even better. That way you would have easy access to BW, have a great pool etc. I've never stayed there, but I've read on these boards that you "always" get an upgrade on check in if you ask, if they have better rooms available. And if you stay in the far east wing on one of the higher floors you can even see Illuminations. They have a Starwood Point program that may help with upgrades. You don't have to actually have any points accrued to receive a free upgrade from what I understand.