Hi Bob, do you have any sample models or even just illustrations of the type of output you're looking for? That would help a lot to better understand what you're looking for.
Max Smirnov has several different advanced array generation tools which may be of use, they would probably be worth investigating:
One of the ones from the last link above is "ScriptArray" which is a base script that modifies stepping and rotation for each array instance, and you can edit the script to produce different effects for how the movement and rotation of each step is decided: http://moi3d.com/forum/index.php?webtag=MOI&msg=5595.18
If you need something that's different from any of the above mechanisms it would probably help to have some examples.
