I want the documents to do different things based on which security group created the document.
This could be done with a custom workflow rule. Probably the easiest way to handle it would be to get the last entry in the audit table for that document which would be from the user that saved/released the document into the workflow, then check their security group. You would have to create rules for each security group that you wanted to handle differently.
Figured this out.
You won't be notified about changes to this idea.