My lovely friend in England informed me of this last night and we spent a good hour or so discussing David's departure and who the Eleventh Doctor might be. And as sad as we are to see David leaving the show, it's perfect timing. He's been the Doctor for almost four years, which is a long time. And if you really want to splurge and buy season three, Amazon.com is selling them at a fairly big discount.

Also, if you're not terribly in mourning, this article and this article gives some more information on David leaving and some good insight on the actors who could be cast as Eleven. Laura and I are pulling for Paterson Joseph. XD