From Official Pix:

For hard-core autograph fans we will be assembling 25 autograph sets of the Celebration III photos. This "Ultimate" set will include more than 115 autographs on all the photos available at the actor tables. Many of the photos will include multiple autographs. The set will also include a very special chase photo only available in these sets. Current chase Celebration III photos expected to be randomly inserted include George Lucas, Rick McCallum, Nick Gillard and maybe one other, but we'll confirm confirm exactly on Saturday when they are assembled.

This ultimate autograph set also includes a black leather Celebration III 3-ring binder and special slip case. Price is currently set at $2160.00 but may change based on the final photo and autograph count at the show. Check the "Pre-Signed" autograph counters for details.