Not listed in the CNet Weekend Projects:
http://reviews.cnet.com/4520-10163_7-5537234-1.html?tag=archive
Have you tried here:
http://www.google.com/search?client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial_s&hl=en&q=Turn+old+computer+into+external+firewall&btnG=Google+Search
Does any budy have a link to the weekend project that turned a old comuter into a external firewall?

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