Adding Multiple Users to Database

In the users section of a database, I can select multiple users and
delete them from being able to access the DB in one keystroke (or so).
Can I do the reverse? If I deleted everyone, is there an SP or a
location that I can select multiple users and grant them access to the
DB quickly?
Thus far, all I've found is to select each user one at a time and give
them "public" access to the database.
(It's a good thing we are not a big company! I tried to restrict
access to all but a couple users to a particular DB only to discover
that I had the wrong DB selected. I had to add each user back in
manually.)
Thanks!
-TimothyConsider using NT group membership to the database.
See sp_grantdbaccess in Books Online;
sp_grantdbaccess
Adds a security account in the current database for a Microsoft SQL
Server login or Microsoft Windows NT user or group, and enables it to be
granted permissions to perform activities in the database.
Thanks,
Kevin McDonnell
Microsoft Corporation
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