You might want to visit the McGizmo forum here and have a look at the "FAQ: Aleph" and "FAQ: Aleph compatible parts" to see the huge possibilities in the realm of the modular SF E-Series lights.
In fact, almost anything is possible with this set-up.
Some examples:
... if you are willing to use LED, that is.
The SF E-Series clicky is the Z57.
bernie