Disney just announced AP discounts for the rest of the year.  The dates are 10/3/10-12/25/10. Keep in mind that some dates are blocked out. Resort discounts are as follows:

Save 30% at Disney Value Resorts and Animal Kingdom Lodge.

Save 35% at Disney Moderate Resorts and Grand Floridian Resort.

Save 42% at the remaining Disney Deluxe Resorts.

Save 42% at Disney Deluxe Villa Resorts.

If you’re using the dining plan, you’ll need to add the special annual passholders dining package.

Use code AM9 or X07 when you call Disney or your travel agent.

You can read more about the costs and benefits of an annual pass here.