bbPress.org

I am setting up a school web-site and I want to have forums for parents, students and teachers. The first two forums should be open to anyone who is registered, but the Teachers forum needs to be password protected. What is the best way to do this? Plugins like eMember seem to be more set up for paid levels of access, not to having a list of users that can access.

I know it’s possible to set up a password on a regular WordPress page – is this possible for a forum as well? Could I just pick a password, give it to the teachers and be done?

The site is at http://tech.unishanoi.org.

Thanks in advance for helping!