Hi Michael, I'm another vote for proftpd. Been using it for yonks, permanently connected to the the net, it gets many probes/ connections per day (none legitimate) and has stood up to it all so far (with the apt-get updates of course). (although the vsftp (or whatever it was) sounds interesting too)
Dave. -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug