Well, the Sash window thing is still a bit buggy (when resizing), but works for the most part.  You can now view the classbrowser as a dialog, or in the left or right pane (depending on your preference).

In fact the bug with the sashiness occurs when the user resizes both the left and right sash.  I should have this fixed shortly.

In the meantime, I will work on getting plugins up and running, and converting wx.EVT to Bind, which means

DrPython 3 will require wxPython 2.5.x.