I was just thinking this the other day! My GF turned me on to The Dresden Files a few years ago. I cosplay as Harry when I go to conventions and on Halloween. I'm on Blood Rites right now and I have Welcome to the Jungle and I've started reading the comics of Storm Front and Full Moon.
I would love Telltale to do a game. It offers so much that could be done with each of the books. Hell they could easily do 2 books in one episode. Plus the cityscape of Chicago and Telltale's graphics would be friggin AWESOME!
If anyone can do justice to the humor and action of the Dresden files, Telltale can.