We also added some nice features to Mixmaster (and some boring bug fixes). Mix keys now have expiration dates and mixmaster itself generates new keys before the old ones become obsolete. Together with a good and self learning pinger (hint: echolot) a remailer can now run more or less on auto-pilot.
Of course there are also Debian packages for Echolot and Mixmaster. You can find them on http://non-us.debian.org/~weasel/archive. When the mixmaster license finally gets cleared up (Len is working with Lance) I'll upload them to the archive. Echolot is GPLed, so that's no problem.