Sysadmin,
There are several tools available. I like a combination of tools. Jetro
mentioned the addusers.exe utility from the Resource Kit. I like to use
this tool initially because it allows you to create both a user account as
well as a password for each user account. I then like to use either
ADModify or ldifde/csvde to fill in the other information.
ADModify is a tool created by two Microsoft employees and is really a great
thing. You can download it at the following link:
ftp://ftp.microsoft.com/PSS/Tools/Exchange%20Support%20Tools/ADModify/. I
also like ldifde but that has a very unforgiving syntax and takes a little
time to get to know. csvde allows you to use an Excel spreadsheet....
HTH,
Cary