From Big Finish:
Zagreus - The long-awaited anniversary story and follow-up to Neverland. Last time we saw him, the eighth Doctor was possessed by Zagreus!
Judging by the cast list it's got just about everyone in it.
The Wormery - featuring Colin Baker and Katy Manning as Iris Wildthyme.
The Inside Story - a behind the scenes book about the recording of the audio plays.
And from the BBC:
The Tree Doctors - a documentary about a group of gardeners who...
The Three Doctors - the classic '73 story on DVD, available with and without a model of Bessie. (The model will be free in the UK, but I'm lead to believe it'll be $20 extra here. Guess which version I'll be getting.)
Deadly Reunion - a book penned by Terrance Dicks and Barry Letts, with the third Doctor, Jo and UNIT, what ho! Might be worth getting... *looks at blurb* or not...
Oh, and it's, like, the 40th anniversary or something.