I have done a corporate wide rollout using samba. We only needed basic functionality and did not start down the slippery slope of providing a full windows infrastructure. We used Samba to provide WINS services, and file/printer shares. As it was a Unix based environment, we wanted to use the users NIS passwords to provide authentication (didn't want to have to set up a new password scheme; hard enough keeping what we had in sync). We did not use domains and PDC's. All depends on the level of service you need to provide. We kept things as simple as possible to keep the support costs to a minimum. Once you start putting in a domain structure, the support and admin costs can balloon out very quickly if you have a large mobile user base. ----------------------------------------