Yes you can run that computer as a server.
When you have a server, you usually setup a "DOMAIN", which will allow you to have an Active Directory. This will control Logins. If your laptops are not on the network, when you come to the login screen, you can select at the bottom "Choose Domain" and select the one that ends in (THIS COMPUTER). This will log you in with the user names and passwords stored on "That Computer". Allowing you to login to the computer outside the servers Domain.
I would like to talk to you in a more face to face manner. I will list my messanger SNs to see if you would like to talk quicker than a forum:
Yahoo messanger - Removed email address
msn/windows messanger- Removed email address
Add me to you list and i will talk to you in more detail about it.
Edited by acklan, 09 May 2007 - 09:09 AM.