Mike,
did you get a chance to think about this issue? I am wondering about the same thing. I have a grid, which is bound to a es collection, where the users can add, update and delete rows. When the user chooses to save, I want the inserts and updates to be handled by the collection, but I would like to intercept the delete so that I can call my own customized stored proc for each entity to delete.
regards
Tore Andre