I am one of several administrators of a network with 500+ PC's. 98% of the computers on our network are Windows XP/2000 machines and now we are looking at adding Mac OS X machines to the list. We are using a Windows 2003 based domain controller and active directory. I am currently working with a Powermac G4 dual 1ghz machine trying to add it to our domain so there is access to share drives and corprate email. I'm very familiar with OS X on the home side but the business side I struggle. Any help would be appreciated.