not a add-in to m0n0, but another PC will be needed,, the developer has
a LiveCD that boot linux and has NoCat, squid, and dansguardian running
at boot-time, he has a authentication server system implemented, but
you can customize the ZoneCD by floppy.
be sure to check out his developers blog, and the forums for more info.
Murphy's Computer Repair
im underscore electronic at mac dot com