Is there a way to create a shared item (Contacts folder, Briefcase, Calendar, etc.). that isn't a resource or isn't owned by a particular user? For example, how would I create an Address Book for the Purchasing department that contains the contact info for our suppliers? One of the users could create an address book and then share it, but then what happens it that user leaves the company?

Is there a way to create such an object without it being tied to a particular user? Or is there an easy way to move a shared item from one user to another (with other end-users not having to recreate their mount points to that share)?