Users & Groups is an Application/PreferencePane that allows more control over Mac OS X User and Group accounts than Apple's built-in Accounts PreferencePane. You can create, and delete User and Group accounts, change a User's short name, real name, uid, password, home directory, and group membership.
Version 1.2.2: Release notes were unavailable when this listing was updated.
Mac OS X 10.3 or later
*Previously available here