Upgrade / Migrate Exchange 2007 to Exchange 2010

We have a single Exchange 2007 server under a mix of 2003/2008 AD.  I know we can bring up Exchange 2010 and coexist with Exchange 2007, but what I want to achieve is a "one shot" deal.  I have 48 hours (weekend job) to complete the tasks, already a new server with Windows 2008 R2 x64 with SP1 and all the prerequisites.  What I want is to keep the server name, IP address the same... setup the new server and move/attach the databases.  Would you please give me some pros and cons, and recommended methods on how it's best and safest ways to do this?  Thanks.
swgitIT ProfessionalAsked:
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Simon Butler (Sembee)ConsultantCommented:
Your method is flawed.
What does it achieve? Nothing at all other than increasing the risk, reducing your time for testing, reducing your back out window and isn't really possible.

If you are concerned about having to visit all machines for the migration, then don't be. Exchange manages all of that. Plus the clients will get a new address when you use an RPC CAS Array.

The best method is to build a new server, replciate the public folders, test it. Then over your weekend move the mailboxes using the move mailbox wizard. Zero risk, zero downtime. Come Monday morning, clients will switch across. Get the SSL certificate setup correctly and remote clients will not notice a thing.

Database portability, even if it was possible between versions, isn't something I would recommend as it brings across an old file with all of its crap.

swgitIT ProfessionalAuthor Commented:
OK, I expected that's what I'm going to get yelled at.  Thanks for your reassurance. :)
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