User Permissions.

We have internal users (company employees) and external users (clients,
etc.) who are using subversion at my company. Currrently there is one SVN
server, and each project has its own repository. We're validating with
Active Directory (via mod_auth_sspi). We're using SVN 1.4.3.

Currently most repositories are used only by internal employees, but some
are shared with external employees. We would like to have some
repositories that grant full access to all 'internal' employees, but none
to external folks. But with so many employees it would be a pain to list
out everybody in svnaccess.

I'm looking for alternative options. Can I use active directory groups?
Wildcards on usernames (external employees belong to the 'external' domain
and thus have usernames like "external\\foo")?

-- 
// Andrew MacKenzie  |  http://www.edespot.com
// GPG public key: http://www.edespot.com/~amackenz/public.key
// In seeking the unattainable, simplicity only gets in the way.
//     - Alan Perlis