My school's photo department has some AB 400's and maybe an AB 800 (not sure), and some sb-800s. The photo dept. also has a few of the Paul C. Buff wireless triggers.
I personally own an sb-26 from way back when, and the photosensitive built in slave works well enough for most of my work. It's a pain in the ass to rely on, but it gets the job done most of the time.