Security Basics: local admin/ domain admin

["Sohail Sarwar" <ssarwar () ecredit com>]

Hi Guys,

        I want to create an administrator account on the domain for my
helpdesk persons.  I basically want them to only add machines to the
domain, and add user accounts for new employees with the option to
change their passwords.  Basically, I want do not want to give them the
administrators password.. and control what be done potentially and
accidentally...  Can some one assist and let me know how I can do that?
Or provide me the procedures.  Any guidance would be great!

Regards,
Sohail