cyrus with virtual users using saslauthd

[redhatdude at bellsouth.net]

Hello
I want to run cyrus-imapd and not use system accounts for users. I  
want to add as many users as I can without having to create new user  
accounts in the system. I do not want to use mysql databases for  
users either. I need the simplest method. If you know of any HOWTO  
that describes step by step how to do this please post it here.  
Please  help.
Thanks,
EJ