Managing Performance

We currently have quarterly staff meetings and quarterly staff/team building days at our library.  With what I have learned at this session, there are a few changes I would like to make to the staff days.  One of the main changes would be instead of just a typical staff day/team building, to have "team building activities day".  The idea would be be to have these staff days be more interactive and rewarding for my staff.  The idea of adding team building exercises, fun activities, and even prizes would be great incentive for staff and help to build morale.