forgot mention Komodo's code and object browser, which're both in the $30 license
http://aspn.activestate.com/ASPN/docs/Komodo/3.1/komodo-doc-codeintel.html#codeintel_codebrowser and SPE's supposed to have some kinda class explorer http://www.stani.be/python/spe -- http://mail.python.org/mailman/listinfo/python-list
