An even better solution for your requirements is not called Content Management but Document Management. A good open source project is O3spaces. For small users available in a Community Edition. For larger usage a more professinally supported billable Enteroprise Editions is also available.
Have a look at http://www.o3spaces.com for more information. And have fun!
Jan Meijer
On 1-11-2010 19:21, Daniel Barrett wrote:
From these requirements, I think MediaWiki is the wrong software. You will not be satisfied with MediaWiki's access controls. I recommend you look into getting a Content Management System.
DanB
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