Limit Internet time usage and printer copies on "client"

> Small peer-to-peer network, WinXP Pro based.
>
> One WinXP pro station act as a gateway "server" with ICS, printer and file
> storage for all other "clients". Network use user/admin rights scheme, but
> this is not however a true master-client server as it is WinXP Pro.
>
> I want to limit Internet usage and print number copies per period on one
> WinXP Pro client only. One employee is out of control using the Internet
> and the printer, although the usage is job-related.
>
> The "client" can have unmonitored and unscheduled access to Internet and
> printer, but we just need to limit the number of hours per month for
> Internet, and the number of pages printed on the shared printer on that
> client station only.
>
> Is there a hidden feature or a low-cost utility that can do that ?
>
> Thanks for suggestions