multi-user Blog?

Hi all.

I am looking for a multi-user Blog system to install for a customer, hopefully someone somewhere has done this before...

There should be a way for anyone to open a new blog, whith their own regular admin options.
site admin should have permissions to disable blogs, or maybe change anyones particular settings too.

I would prefere if this was an ASP based system cos then i could tweak as needed, but i am open to other ideas, providing they encompass all i need :)
I would ideally like to plug this into my Web Wiz Forum (7.9) database, so that folks dont need to keep 2 sets of user info etc.

I recently to the MU World Press: http://mu.wordpress.org/ looks good, but it seems its still in Beta, and i also i dont code php.

thanks for any advice!

PS: i need a multi-blog system, not a multi-user system (on one blog). Thanks!