December is my favorite time of year at WDW There is SO much to experience.
As already mentioned the Christmas Parade at MK, Holidays Around The World and Candlelight Processional at EPCOT World Showcase, and Osborne Spectacle of Lights at DHS are definite must dos. I tend to agree with DisneyDame2004 - I would save the $$$ on MVMCP and wait the 2-3 days to see the parade, etc.
I always catch at least one nigthly Tree Lighting Ceremony at EPCOT. You should also try and visit at least a couple of the deluxe resorts for their holiday decorations. You will also be there for the caroling events at the resorts, I would defnitely try and catch one of those.
Downtown Disney is also beautiful at the Holidays with events of it's own that late in the month.
It's just beautiful at WDW in December. Enjoy planning, anticipating, and ,especially, enjoy your trip! Be sure to post a trip report and share your experience.
~Jerry & Nancy~
Sept. 3 - Sunrise WEDDING Vow Renewal then Drive to WDW
Sept. 4-16, 2011 - WDW HONEYMOON:
Sept 4-9 - Pop Century
Sept. 10-16 - Caribbean Beach