When each January rolls around it means some Disney movies head back into the vault, not to be seen again for an eternal seven or so years.
According to UltimateDisney, these are the titles heading back in the vault in January 2010:
101 Dalmations Platinum Edition
101 Dalmations 2: Patch's London Adventure
101 Dalmations (live action)
102 Dalmations (live action)
The Jungle Book Platinum Edition
The Jungle Book 2
Sleeping Beauty Platinum Edition DVD and Blu-Ray
The Black Cauldron Gold Collection
So if you don't have them and want to add them to your DVD collection, you have until January.
On a side note, The Black Cauldron is getting a brand new edition (hopefully restored) in June 2010. (it was supposed to come out this month, but got delayed until next year)