According to some other sites, a new Tour will be offered this holiday season at WDW called Disney's Holiday D-lights. It will offer:
Admission to the Candlelight Processional
The Castle Dreamlights show at the MK
The Osborne Family Spectacle of Lights at the Studios.
Decorating Support: Visit the people who design special/holiday events at WDW.
A 4 and a half hour tour, offered select Mondays and Wednesdays from Nov 30 – Dec 16, 2009.
Price is $179, and admission is not needed. A LE pin is also included.
I like the idea, but it seems a lot of money to do things that can already be done in the parks...
It's not on the official park site yet, but hopefully more details will emerge.