Support Forum

I dont know if this is asking for a feature... or if it can be done with simplre press in its current state.

Ok here it goes,

Lets say I have 10 guilds that I wanna give their own forum to each one, so each guildmaster would control their forum. To keep it private they would have to authorize each member to access their forum.

This is needed so users from another guild wont have access to another guilds forums.

Can this be done with one WP install,... or with WP MU??? or in any other way?

The idea is to give each guildmaster the power to do as they wish with their forum.

thanks