Glock and.....There a couple of classes in Alabama that I can personally vouch for:
http://www.wayofthegun.us/ (B-ham area) Frank is the man, and makes (IMO) the best damn AR sling out there, and he's pretty good instructor too.
Arclight Group here in Auburn
http://www.facebook.com/find-friends...76569229020175 http://www.facebook.com/pages/Arclig...type=1&theater BIO All they have is facebook page but if you go up to "The Firing Pin" in AU and will answear any?'s, One of the group works there. And of course there is training(and IDPA which will come after training) at Central/East Alabama gun clubs.
Up towards Huntsville there is Shootrite but have no exp. with them. There is always instructors passing through as well.