Chuck,
A tedious way of doing this is to do 2 renders.

The first is the full scene and will include all reflections...

The second is the alpha render and will include only those objects that you want to have an alpha channel...

Take the alpha from the second and transpose to the first image (overwrite or delete the old alpha).

This should get you what you want. It IS tedious, but it will work.
Edit: I just noticed the full comment in the post. You have to move more than just the alpha, but if you have (and know how to use) PS or PSP you should have no problem with the compositing.
Ken

Message edited on: 06/28/2004 11:12