I'd suggest watching this board as well as the discounts listed on DISboards at
http://www.wdwinfo.com/discounts.html Another place to check is mousesavers.com which does a pretty good job of comparing package vs. room-only rates.
Here is an example of the kind of savings you could get with a September room-only discount:
Values starting at $55 per night
Moderates starting at $85
AKL and WL starting at $119
I was able to save about 40% off rack rates with this code at WL for a woods view room (I was
very happy to get any discount let alone such a good one). I think there are comparable savings with the Dream Maker package codes, although only the room part is discounted.
One other thing I picked up from this board is that many people book room-only using whatever discount they can get at the time of the reservation then later apply the room-only code to get a better discount, especially if they really
must stay at a particular resort and/or have a specific room type and would be willing to pay whatever rate was originally booked at if a better discount did not come along later.