Question about mapping Control and Meta keys to mouse buttons

[Gray Calhoun]

Hi,
 I'd like to map the control key and the meta key to mouse buttons 1 
and 3 -- I'm working on a laptop and the mouse buttons are conveniently 
located under my thumbs.  Ideally, I'd move the mouse buttons to the 
keyboard, but I'm not concerned if I lose the mouse's functionality 
entirely.  Is it possible to do this within emacs, or does it need to 
happen outside of emacs?  I'm using version 22.2.1 in Debian, if it 
makes a difference.

Thanks!
--Gray