BuddyPress.org

Thanks, I will check that out.

I think I still need MU though, as I want each person to have his/her own “page aka limited blog”.

Basically what I’d like users to be able to do is show up on the site, see a “home page” of all posts and various feeds that the main admin controls, have a “blog” of their own that they can control posts on (but not modify themes, plugins, etc), and be able to use the BP plugins to interact socially with each other.