Exchange on SBS 2000 .. Migrating to new server running 2003

I have seen some topics on this, but does anyone have a step by step on how to migrate exchange from an SBS 2000 server to a new server (DC) running 2003. Can this be done on the same wire (lan) ?  Do I bring both servers on-line on the same lan?  I have heard that this will not work, having 2 DC on the same lan if one of them is running SBS 2000. Any help that is given is greatly appreciated.  
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SBS 2000 has a number of limitations regarding Exchange Server.  The upgrade process for SBS is also very limited.  These links help detail some of the limits:

Description of the Product Limitations in Small Business Server 2000 

How to upgrade Small Business Server Domain Environment to regular Windows 2003 Domain;en-us;555073

SBS has some inherent limitations and it can be difficult to migrate to the standard product line.  In regards to migrating Exchange 2000 to Exchange Server 2003, I'd suggest the following migration path:

Extract the data from your existing Exchange installation, see 'How to Use ExMerge 2000 to Migrate from Exchange Server 5.5 to Exchange 2000 or Exchange Server 2003';en-us;328741, which will still apply to Exchange 2000 to 2003.  After getting your data from Exchange (and ALL other applications  that store information on the server), then you can format the server, create a new domain using Windows Server 2003, install Exchange 2003 as a NEW organization and then exmerge your data back into Exchange.

Before you do anything, make sure you get good backup of your configuration, data and server settings.  This can turn into a nightmare if you're not prepared for it.

Hope this helps,

Dale Drew

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