Reinstalling a Windows 2000 Domain Controller Using the same computer name

Hi everyone,

This is my first post, and I wanted to test the waters with this question. This is the basic system info, and the scenario greatly simplified, so please feel free to ask for any info that I left out:

Here's my scenario. I have two Windows 2000 Domain Controllers running on my network. Server1 is the following: Domain Naming Master, Schema Master, Global Catalog - Runs Proxy 2.0 (downstreaming to the main Proxy server sitting in a DMZ) - Runs Exchange 2000.  Server2 is a: RID Master, PDC Emulator, Infrastructure Master. We are purchasing a new server, which will become the new Exchange 2003 server, running Windows 2003.

Would it be possible to: move all of Server1 roles to Server2, backup the Exchange IS, demote Server1 to a Member Server, then remove the server from the domain. Then load the NEW server with Windows 2000 Server using the same computer name used by Server1, restoring the DC and other settings, and restoring the backed up Server1 onto the NEW server?

I'm just playing around with some scenarios, and would appreciate some thoughts from the experts who might have done something similar! I'm thinking the SID is going to be an issue, what about you?

Thank in advance,

M.