Another note on the Postfix-vs-qmail discussion. Qmail has *lots* of 
user support in the way of active mailing lists, a very readable book 
(and at least one other on the way), and a few support sites. Postfix 
doesn't seem to have much support at all. I like support, but I don't 
care for djb's restrictions that prevent a single, easy qmail 
distribution.

And, yes, I'm still trying to decide between the two of them as well...