Look on the opening DIS page and you can see the discounted rate for your dates. They can be as low as $149. We have stayed many times at both the Swan and Dolphin and they are very nice hotels. Be sure to join Starwood Hotels frequent guest program to earn points during your stay. Enjoy!
I have used the teacher rate at Dolphin, just depends on your dates. The teacher rates are good though and the S & D are very nice hotels, deluxe.
The only downside is you can't use Magical Express or the dining plan.
WE booked S/D 2 months ago for Christmas week(2007)...All the deluxes wanted $474+ a night for a family of 5. We got the Dolphin for $189 with the teachers discount!