Best Pract for Server Upgrade W2K?

Archived from groups: microsoft.public.win2000.setup_upgrade (More info?)

I'm replacing a server running W2K that has non-RAID SCSI
drives with a new server that is RAID-5 based. The
current server is also the Domain Controller (Active
Directory), DNS, DHCP, and RIS server (small school - no
money). The other server in the network is an Exchange
2003 & Print server. What is the Best Practice for
migrating to this new hardware? I've already rebuilt this
original server after a crash last summer and had a very
hard time with the Exchange server recognizing it as the
same server.
Someone must have done this before...