Windows 2003 standard bdc and windows 2008 pdc

My Scenario:

I work for this company that is currently running windows 2003 standard. They are using Terminal Services to log into the server and they want to create a domain. We just bought them a used Poweredge 2850 that came with windows 2008 standard. Now we want to create a domain for them on the new server, but move all of the software from the old server and keep it running terminal services for the thin clients they use.

So my question is, can we create a domain on the old server, then promote that domain to the new server and use the windows 2003 server as the backup domain controller and have windows 2008 be the primary domain controller. Also will this cause problems with terminal services if we do this. If so do you think it would be better just to create the domain on the new server and leave the old server without a domain and allow it to run terminal services and have the new server point to it.

Also keep in mind that I am new to the game. I just received my associates a little over a year ago and I currently almost have my bachelors in network administration.

Thank you for the help!
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Nenad RajsicCommented:
adding your old server to your domain is not going to affect your terminal server users. the only thing you will need to do is add those users to the domain and configure their settings. you can also use your old server as BDC if you have no other spare servers on your network.
Darius GhassemCommented:
First thing you shouldn't ever install Terminal Server on a Domain Controller.

Currently you have a workgroup. You are going to have to have 1 DC since your other server is a Terminal Server.

Dpromo the new server because if you move TS you would have to purchase TS CALs for 2008 since your 2003 CALs will not work with 2008 server. Once you have the 2008 server dcpromo then you would go to each client and server then add the servers to the domain as member servers. So, you 2008 server will control the whole domain the 2003 server will just be a TS server.

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BstanzianaAuthor Commented:
I do appreciate the help. That does make a lot of sense. I even told my boss it was not a good idea to mix a TS with a DC. Just like I said though, I am a little new at this and lack the experience to know fully what I am doing.
Darius GhassemCommented:
Let us know if you need anything else.
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Windows Server 2003

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