Access to Admin Area

Hi,

Does anyone know a way to provide access to the Admin Area where Non Admins can create users and add them to groups?

Use Case:
Account Managers are able to create Form 1 and add a user from it, they now need to go to the Admin area to add them to a group OR They need to be able to go to the Admin area, create the user and add that user to the appropriate group? I do not want Account Managers having full access to all the forms.

Thanks,

- Sandy