Exchange 2007 or 2003 in a new Frontend-Backend, Clustered-LoadBalanced Scenario

I am rebuilding our Exchange structure. We are going from a mix of 2000 and 2003 Exchange servers in a distributed environment to a single location in a CyberCenter. We currently have 5 Exchange servers (single servers) in different locations.

Current Setup (spread over 5 locations)
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5 Exchange Servers (2000 and 2003)
1000 Users

New Setup (1 location, in CyberCenter)
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Exchange Cluster Back-End (1 active, 1 passive)
Exchange Front-End (2 servers, OWA and RPC/HTTP, Load Balanced)

QUESTION:
Should I be going to Exchange 2007? If so, how should I split up the new “roles” to achieve my new setup?

Charlie
ShakturAsked:
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SembeeCommented:
For me I would probably stick with Exchange 2003 and use the clustering technology. It is a tried and trusted system, you will not have problems getting support or assistance from others in the event of a problem and most of the issues are well known.

Exchange 2007 is still a little new and clustering with E2007 and the best practises is taking a little while to settle down. I think many people are waiting for the first service pack before taking the plunge.

If you went down the Exchange 2007 with CCR route, then you would have to put mailbox only role on the cluster and everything else on the other servers. Both servers could be client access servers providing OWA and Outlook access.

Simon.
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ShakturAuthor Commented:
Thanks Simon. That's all I needed to know. :)

Charlie
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