[Mediawiki-l] Access rights for separate projects or wiki-farm

[Mike Gerra]

I am building a mediawiki based site that requires restricted user group 
access to specific projects. Also, I need some users (non-admin types) 
to be able to manage rights for others in their own areas. Should I set 
up separate wikis of try some kind of self-managed page / namespace 
restricted access? Or other method?

I am looking for recommendations. I thought setting up a wiki farm might 
be the way to go. Can anyone share any php code along the ones that the 
various wiki-sites use? Any and all thoughts are welcome. Thanks. Mike.