I have watched CNBC for many years now and always see those guys on the NYSE floor running around. I never thought to ask what each guy we see does, well, because I never cared. However, I am curious. The guy who is typing madly on the keypad is the guy filling the orders, right? What about the guys with the handhelds? What about the setup of the actual posts? Whats the basic setup and how does a guy get a job typing madly away on that keypad...at any point does he stop to take a break. Is there a place where I can read about all this info just out of curiosity?