Batch YouTube Video Renamer

There really needs to be an application that, given a set of YouTube credentials and a set of videos to affect, renames the videos according to some set of rules.  I'm surprised there's nothing like this on Google Code (that I could find).  I think it would help my YouTube channel to shift away from my current episode numbering system to a more intuitive one -- why did I think it was a good idea to start counting at 0?  I guess it would be difficult to remove the brackets, truncate the leading zeros, and change the number, but it would be immensely helpful to have such a program.