What a dumb a**, I just realized I started this thread with a BIG typo. It should read:
1) Windows Server 2008 Enterprise DC file server and Access db
2) Windows Server 2008 Enterprise Terminal Server
3) Windows Server 2008 Enterprise running Exchange 2007 Enterprise, 150 mailboxes
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Currently, DHCP on the PDC is using 1 scope. WINS on the PDC also.
Exchange will backup with Mozy Pro, as will the file server. Local backup to tape is also an option. Hadnt thought about SCR.
I know about the stop at 2003 on the way to 2007. I'll probably use one of the present PowerEdge's for the temp 2003 server. I didnt know about the wait after installation. Cant wait a week because its gotta be done in 3 days because the staff will have no access to network resources. (they might as well get 3 days off) I'll have to dig out the Exchange 5.5 media. Hope its where I left it 6 or 7 years ago.
The prospect of an extended 'settle in' period is utterly depressing. Can you elaborate?