Another interesting set for a recovering Java developer is the Python Service Objects project over at source forge.
http://sourceforge.net/projects/pso/ the development seems to have come to a halt. I need to try and contact the folks who were working on it. But even at the level it is now running at, it works quite well.
I haven't played around with the Twisted package too much as of yet. It's on my "to do" list.
I am just hoping someone manages to get mod_python going on the OS X install of Apache.