Ian Ozsvald and Kyran Dale have created ShowMeDo.com which is a hub for video tutorials. Very interesting idea! Currently, it has a special emphasis on Python. This should be helpful for beginners and perhaps teach experts a trick or two as well.
I found the Debugging with WinPDB video very useful.
Ian will be uploading some wxPython introductions shortly, and they've got matplotlib, PythonWin, PyDev and more planned.
Also, users can contribute their own videos as well.
Update : The wxPython videos have been already uploaded.
Disclaimer : I was asked for feedback before the website's release, but I have no other involvement with the website.