If you're a fan of IT work, you already know what you need to know.
If you haven't done IT
work before: This is a decent place to start. The video is a young Oz Pearlman demonstrating the
uses and setup of the works.
Not my cup of tea, and it'll just sit in the drawer until I
find somebody near me that'll appreciate it, but if you don't mind gimmicky magic, you may find some
uses.