Anybdoy know of a good howto for setting up a home mail server?  Gentoo has a Virtual mailserver how to, but that's not what I'm looking for.  I own two domains, and I want to have email from those domains delivered to my server.  I have Postfix in mind, I've heard it's pretty easy but I'm obviously not set on it.  I'd also like to include spamassassin, and antivirus (clamav probaly...)
 
Thanks
Eric