How can I restrict access to certain Preference Panes? Several of the preference panes on my Mac at work have are translucent and when I hover over them I get the following message:


  Your system administrator has not given you access to this preference pane.


How is this configured? I'd like to do the same for my machine at home that my niece and nephew use.

Clarification: On my Mac at work: National IT for my organization created the original image (I'm with local IT). I'm guessing when they created the image they used some admin configuration tool (similar to Group Policy on windows?).
Parental controls looks like a good answer for my needs.

However, what my work has used for restricting accounts is MCX policies applied through Workgroup Manager.