Plone Shell
Plone shell is an interactive prompt that mixes a ZEO prompt in with PyCrust.
What does this mean for you? Well it means you can connect to your ZEO server and get auto completion on the objects and methods of Zope. You also get tool tips if they can be found.
This requires wxPython (2.4 and on should do) and your Python environment configured to import Zope. If you want to use it at the same type as Zope you'll want ZEO.
Download
Available versions of the software can be found in the download area.