postfix and spamd

[Noah]

Hi there,

I am trying to figure out the best methods for handling spam on my 
server.  I use postfix and have spamd running.  Periodically spamd will 
die off and it's auto restarted.

I am wondering if there are other schemes that require less CPU than 
having spamd running.  Also I have mailman running as well and some of 
the lists I would like to have spamassassin handle spam.

I was able to find some relevant links on the subject matter but 
wondering somebody has solutions they have tried and like and perhaps 
can share tutorial websites if they exist.

Cheers,

Noah