I'm just rather leery about a 3D version of
The Hobbit. It's just a massive cash grab and really, I don't really see many points in the movie where 3D could actually be used (with the exception of Smaug) in the film and look good.
On a separate note, any word on who the actors will be? As a Theater geek, that tends to be the part that I'm most interested in. If the acting sucks (coughORLANDOBLOOMcough....sorry, I have a hate on for him lol) then it will ruin the movie for me