Chances are you've since this already, but if not, then check this out.
I can't wait, very cool trailer. Looks like Peter Jackson has gone for a slightly darker version of The Hobbit, which makes it look all the better. Not to mention the fact that the quality of it will be amazing, since they recorded it at 48 frames per second, and in glorious HD.
There are some of the making-of videos on my YouTube channel here, and you can read up on the rest of the news at The Hobbit's blog, here.
Personally I'm looking forward to seeing more of Gandalf; Ian McKellen is one of my favourite actors, but they've also managed to make the Dwarves look pretty cool, especially Thorin. The question is whether they've managed to give them all distinctive characters, or whether they're all pretty much the same. This time next year it'll be released, can't wait.