Well sounds like you guys would make ideal moderators, If you are interested of course

The voice server will be grown to accomodate more users if required, and there is no real limit to how many people can be in any one room, however we have set some limitations just to get started.

Hopefully through feedback from users, we can adjust this to suit.

As for individual rooms, I think its a good idea to make them quite broad catagories, and let more specific conversations take place in some general topic private rooms.