Those above sites are wonderful as I still use them for my business travel!
Did the PL for WDW trip about 3 years ago, and scored the MOWC for only $55 a night!
It was a wonderful resort, not on property, but still super!
Was one of those vacations that we also did Universal, SW, Gatorland.
Dolphin has been coming up on Biddingfortravel.com. lately at
$ 70 a night.
But, as the site says....DO YOUR RESEARCH!
Know what resorts are available during your dates, and the prices that are available from all resources, ie, expedia, orbitz, the hotel chain internet site, etc....
Hope this helps, too!
Also, I used to "hang out" on the DIS Budget board!
Great place to learn how to save for WDW !