Quiz game in Flash (using buzzers)

Hello, how would i go about getting Flash to recieve inputs from a buzzer system?

About the buzzer system itself…

Would i be able to use buzzers from the Ps2 “buzz” games? I mentioned these because they have a USB cable so i could plug them into a pc.

How about a diy MIDI controller style home-made buzzer system?

Any thoughts/ideas welcome

Thanks