Biff,
I teach in Everett MA, just a few miles north of Boston and YES you are very welcome to visit. I am working with MassCAN, CODE.ORG and other groups that support Computer Science teaching both here in MA and elsewhere. There are a variety of schools that are teaching the Exploring Computer Science curriculum in the area.
Since I have an IT background, I decided I want to allow my students to know more than just making webpages. I had them install a LAMP server on a donated system. My experience in servers was heavily on Novell Netware, OS/2, Windows NT, Mac and just a little bit of Redhat. I was the IT specialist for PC Week for about 10 years.
In my classroom, I have to depend on a bunch of old Dell systems still running Windows XP. To get around the security limitations (I cannot change or install anything on these computers) I made USB boot disks with WattOS. The students reboot and run live. So far this is working fairly well. I have not worked much with LDAP but I think that it will be the next step. I want to replicate the Active Directory type environment for several reasons. If I can prove it works well, maybe I can get the district to migrate to LINUX on all of our old boxes. Most of our students just need a browser and Google Docs for most tasks. My WattOS sticks run so much faster than the XP on the hard drives.
I'll certainly need to ask some more questions as I get more deeply into LINUX based networking. Thanks to all for the support!