Terminal Server Clients

I need to configure TS to allow clients to install programs, printers and modify the registry. How can I do this, I am looking for a Windows 2000 Power user rights only the user is in an AD domain.

Any thoughts. The admins can do all of thesebut we don’t want to make everyone admins! Can you point me in the direction to find steps for this or give me your thoughts,

Thanks

Windows 2000 AD Domain with Terminal Server and Licensing running. Clients are able to access the server andstart programs but some programs need to modify reg to run and they generate errors.