Scott Henderson and I are going to try installing a spam remediation stack on my new Debian box this weekend. Amavisd-new, Vipul's Razor, and Spamassassin are on the plate, and something for DCC if none of the listed is a DCC client (I'm not exactly ahead in the research as you can tell). We're doing it at Bandersnatch Saturday afternoon at 2:00 PM. Stop by if you are interested, or want to help (of note, I am a Debian newbie, could really use someone who knows apt).