I have inherited a LAN with an Xserve, but the Xserve is not running Open Directory as of yet. I also have Windows Server 2003 Enterprise, which hasn't been installed on any machines yet. SO, my problem is this: I need to set up centralized authentication. Currently the Xserve is simply running as a file server, and every one of the 20 employees uses the same password to access the Xserve's shares on its attached RAID box (I know, I know...I didn't set this up, this is why I'm fixing it...). SO, do I set up Server 2003 and Active Directory as the primary Domain Controller, or do I setup Open Dir on the 10.4 Server Xserve and (is this even possible) run Server03 as a secondary Domain Controller? The goal is to be able to easily manage the Macs and PCs on the LAN (such as OSServer controlling the Macs and Server03 controlling the settings on the PCs, etc.) Am I headed toward a dead-end or pit of despair? My eyes are sore from Googling and not finding anything specific to the plusses and minuses of setting up a new network with either Active Directory as the primary authentication host or Open Directory from OSX Serv. I can find all sorts of info on connecting OSX S to a Server03 Active Directory network, but that's not really what I need. Since neither is set up and I have the option at this point to do either, I'd like to start off on the right foot. Thank you SO much, in advance, for any input anyone can offer. I really need some help ASAP!