This is for a small charity hospital intranet running Windows server 2003. The administrator needs to be able to assign a nurse to each room for each day. (Nurses are already set up as a specific group of sharepoint users). And then everyone else needs to be able to see a calendar view for the week/month, showing a grid of each room and who the duty nurse is for that room.
So the admin system will need to have an editable list of the rooms, and then the facility to assign a nurse to each, in such a way to make it clearly easy and obvious that the same nurse isn't being assigned to different rooms at the same time.