Just a quick FYI, Chris McDonough has his PyCon 2008 slides up already on his Supervisor talk. In a nutshell:
“Supervisor is a Python program that allows
you to start, stop, and restart other
programs on UNIX systems. It can restart
crashed processes. Built on Medusa. ”
We will be talking about Supervisor in our book on Python for Systems Administration. It is a great tool. If you have not used supervisor, at the very least easy install it, and try out the “cat” example in the manual.