Spamming anti-spam software would cause me to ignore it....
Besides I use this :
SPAMPAL
which is FREE and has a current user base of around 43000.
It uses a user selectable combination of block lists and filters(Regex or Baysian) and integrates nicely into Outlook Express. The guy who wrote it is very active in the anti-spam community and does not have to SPAM get users.
I've used it since November and hardly any SPAM sneaks through.
