I've just seen the statistics sent out after the day one signups for PyCon tutorials, and Python 401: Some Advanced Topics already has eight signups! Thanks very much to everyone who has shown so much confidence in this tutorial. If there are specific points you'd like to make about your expectations of the session then please let me know here.
Ken Whitesell has already made one suggestion, which I am going to try and adopt. Thanks for the feedback, Ken.