MacOSX 10.3 AD Authentication

• Open up Application | Utilities | Directory Access, then click on Active Directory and then Configure
  
• Fill out the Active Directory Forest and Domain, then click on Bind
  
• Type in a username and password that has access to add computer accounts
  
• Click on Show Advanced Options, and check all the values are right
  
• Click on Authentication, then Add
  
• Choose Active Directory, then Add
  
• Click on OK