Role Specific Distributions?

An Anonymous Coward asks: "I'll start off by saying that I'm a Windows 2000 MCSE, but in our mostly-Windows business, I've managed to sneak a few Linux servers in here and there. For example, our primary DNS server runs Linux, but the secondary is a Windows box, to keep the boss happy. He's scared of Linux due to the massive configuration needed, not to mention the lack of checkboxes and 'Are you sure?' dialog boxes. I think something that would help him (and probably others) accept Linux more in a server role would be a custom-made distribution dependent on the role of the server. Does such an animal exist (something like 'Linux -- DNS Server edition') where all services except BIND are disabled, and BIND is already setup securely with just a few site-specific things left to configure (like the specific hostnames and zones)? How about something like this for web, email, and news too?" While we all know that any Linux distribution can be tweaked for a wide variety of services, might this make some kind of sense in an odd, PHB kinda way?