Yes, there are discounts. If someone in your party has an Annual Pass, there were AP discounts available at many resorts as long as you check in by 12/26 I think. AP rates have been out now for a couple of weeks for this time period, so I'm not sure what the availability is now. I got an AP rate at the Poly GV concierge for $235/ nite + tax for 12/21-12/27.
There were also nurses/teachers/gov't. rates available at Swan/Dolphin over Christmas/New Year's--again, I'm not sure what's still available. Lots of people were also getting excellent rates for S/D on Hotwire too. I got the Dolphin for $109/nt for Jan. 6-10, however, it was also coming up at that same rate over Christmas and New Year's. This was a few weeks ago.
I would just call WDW and S/D and see if these discounts are still available for your dates, and check Hotwire as well.
Sue