We're going to be upgrading our servers. Presently we have 1 PDC and several BDC's.

I know to upgrade the PDC first. Although we'd love to be able to load a 2000 DC from scratch, it's just not possible. "Upgrading" is the route we're going.

Has anyone actually gone through the process of upgrading an NT PDC to 2000 server? What bumps in the road did you encounter? I'm fishing for tips to make this as smooth as possible so I don't have to be here until 4am.

I need to do this overnight on the PDC and still have the BDC's communicate with the new 2000 server.
Once that's done, it's on to the BDC's.