WordPress MU

Hi,

I'm setting up a large online community, and am wanting to categorize different sections.

For example, I will be having three main categories:

TV Shows
Movies
Books

What i want to be able to do is make the url structure as follows:

http://domain.com/tvshows/lost
http://domain.com/tvshows/desperatehousewives
http://domain.com/books/twilight

etc

Is there any way to do this in mu on its own, or possibly a plugin?

Or is the alternative setting up three installations on mu,
one for tvshows, books and movies?

Any help would be greatly appreciated!

no one has any insight at all?

It's not built in and there are no plugins to fake the extra folders for you.

If you want to do 3 separate installs, go right ahead.

Any idea if this is in the pipeline? I'm also interested in doing something similar.

No, it's not in the pipeline at all.