I don't have the energy to look for a link to the story, but Michael Bloomberg will propose an $8 congestion fee for vehicles entering Manhattan at some point in the city. So maybe congestion pricing is starting to make an impact in the policy arena.
I had a post about congestion pricing a few months ago. Again I highly, highly recommend taking a look at Street Smarts if you're interested in the concept. The Reason Foundation also has lot of stuff online about it at www.reason.org.