OK - well, I am pretty much sold on Alfresco but I can't guarantee that it will do the SSO with FF - it definitely will do AD and I think kicks Viewpoint butt.
Nice interface, do I understand this right: the only community version is a dev snapshot, and it needs java (shudder)?
I just started looking at Mindtouch which distributes a stable community version in rpm format and doesn't use java. I continue trying to get the auth in Dokuwiki for one more day, then I will have to trow the towel in:)
Thanks for the reco! jlc