jus a noob lookin for help

hey everyone...im not new to the whole server thing...jus to setting up/maintaining a mail server on my home machine. Im a student here in oregon...and me and my friends are looking to start our own lil buisness, so, i set up a web server on this machine, but now i need help settin up a mail server for us...if someone could post a url for a site that helps out i wud appreciate it...or if u want, u cud post how to actually do it. I tried searchin for it but to no avail...nothin. So, anyways, thx in advanced! later

Try this:

http://www.lifewithqmail.org/lwq.html

If you run into any problems, post back here.