Hi Eric,
The moinmoin version (1.5.2) that you're running has a GUI page editor (based on FCKEditor) that should run reasonably well.
There seems to be a problem in your setup though -- when I select "Edit (GUI)" regardless of browser or platform, the GUI editor pane fails to load in the edit page that opens up.
On e.g. http://moinmoin.wikiwikiweb.de/ the same moinmoin platform runs the GUI editor just fine for me.
Could you look into this? I think our folks might participate more actively if the GUI editor were up.
John