bind keyboard POWER button to start some program

[Vladi Lemurov <fix@stekloprom.ru>]

Hello!
How can one bind a keyboard key (in my case I would like to bind 
keyboard POWER button to /etc/init.d/poweroff script) or key sequence 
(i.e. ctrl + f1)
to a script launch or something. For example one pushes keyboard POWER 
BUTTON and the script /etc/init.d/poweroff is being started.
I need that working in terminal, don't need in X. I found hotkeys 
package but this one requires X11. Thanks in advance.
                                    Vladi.