I'm no authority on the subject but Django seems like the big player when it comes to Python. I also believe they've got a free book walking you through it, but again I have no clues beyond that.

There is also some stuff at the end of www.learnpythonthehardway.org focusing on web dev but it doesn't use Django.

Also, I imagine what ever text editor you used for other things, e.g TextMate or Emacs, could work well here too. I think maybe Eclipse will do plugin because, after all, there's usually a plugin for everything with Eclipse.

P.S keep me posted on how you get on :)