I don't know about you guys, but I think letting users add/modify user-def fields is a problem waiting to happen. It's bad enough when users start adding f2 values with reckless abandon, but adding the fields... Too many potential problems. What about things like custom views associated with record types, usergroup viewing, etc. Yikes!
"You cannot hold a torch to another man's path without brightening your own"
Best regards,
Bill