Migrating domain controller for windows 2000

I am doing a rebuild of a domain controller for a windows 2000 server.  Someone made the server use all Dynamic disks so I can t resize the C drive and it is full. So now I need to rebuild the server.  I have installed a temporary server to assist in migrating the Domain.  however the temporary server I have uses Windows 2003.

Will I have any problems promoting the 2003 server to a DC, moving all the FSMO roles, DNS, and making a Global Catalog, AND then moving it all back to the 2000 Server after I rebuild it?

Are there any problems that could happen? Any thing to be aware of?
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ryan80Asked:
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Mike KlineCommented:
You will need to prepare your forest for the 2003 DCs
http://www.petri.co.il/windows_2003_adprep.htm
You should not have problems promoting the 2003 box.  My only suggestion is once you get the 2003 box up and running you then make the old box a 2003 box as well.
Before you rebuild you will want to demote that 2000 box and make sure it is out of AD since you are wiping the box and rebuilding the array.  
Remember all your clients need to be pointing to the new box for DNS.  I'd just shut the 2000 box down for a few days after the 2003 box is up to make sure things are ok.  Then rebuild once you are satisfied.
Thanks
Mike
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ryan80Author Commented:
Is it possible to move it back to a 2000 Server?  We dont have a license for 2003, and a friend is lending me the box with 2003 on it. We rather stay with 2000 for now if possible.  
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Mike KlineCommented:
Yes you can move it back to 2000 just don't change the mode to native 2003 mode...then you can't move it back to 2000
are you currently running with only 1 DC?
Thanks
Mike
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ryan80Author Commented:
yes,  It is just a small office with 5 people. there should be a second DC, but there is not money in the budget to purchase another server at the moment.  Once we do have the money we will leave the old server as a backup DC.
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Mike KlineCommented:
ok that makes sense, you know you need a second one but money is tight...understood.
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ryan80Author Commented:
We have full backups running so we can do a bare metal restore if the whole server goes down. Not ideal, but unfortunately what we have for now.
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Mike KlineCommented:
...it is better than a lot of places your size.
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