Changing Domain Admin Password

Hey all,

Quick qustion, that is most likely obvious to those that have done this. I am looking for online documentation, not tips, an actual print out, that can step me through changing a Domain Admin password that would affect 1 PDC, and 3 BDC across 3 LANs, communicating through a VPN Network connection.

Where can I find the best documented and painless way to change this all important password, that I know will affect all MAJOR NT SERVICES, and soem user services across the entire domain.

Please help.

Thank you.

Paul M. Chavez