I'm seeking to use WordPress as a Content Management System for several "sites" under the one domain name of
Each "site" would be managed by its own editor, dealing with sea change issues in their locality - - with me a top administrator.
Each site would have its own subscription arrangements for access to some specific information within that site.
Any blog attached to any of the "sites" would be secondary to the main content.
Would that be feasible within WordPress, or would WordPress MU be better to manage the whole?
(given that WordPress is primarily not a CMS system)
Or, (dare I say it) some other system, such as Joomla ?
Thanks in advance,