What are the side effects or "gotchas" of raising the forest level from Windows 2000 to Windows Server 2003?

We are ready to raise or forest level. The domain is at Windows Server 2003. Are there any gotchas to worry about? For instance, when we raised the domain level, we were concerned that our then-current "Default Domain Policy" might be overwritten with the Windows 2003 defaults, such as Password Complexity Requirements. That didn't happen, but that's the kind of thing we are concerned about.

Thanks,
David
dacutlerAsked:
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Jay_Jay70Commented:
Hi dacutler,

raising to 2003 mode basically wipes out the ability to ever have any domain controllers other than 2003 machines. That is the only drawback, everything else is beneficial

http://support.microsoft.com/kb/322692




Cheers!
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Jay_Jay70Commented:
dacutler,

your policy wont be touched,all you are doing is rasing your functionality level and thats it

you just have to make sure you are never going to want 2000 DC's (or NT)
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Rant32Commented:
Agreed here.

You'll love the 15-second intrasite replication delay on native 2003 forests.
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