Surgemail from www.netwinsite.com helped me install their email solution. It took a couple of days, but there were no error messages that I couldn't figure out and work through. I know have a multi domain, very scalable, easy to manage, mail server.
Any one that ain't a programmer (like me) or who is a noob (like me) will appreciate it. the $150 (for ten domain license) was well worth it. I wish I had found it last year when I started trying to configure email/webserver.
This in no way diminishes the amount of help that I got from a lot of people over the last few months.