Animated Gears?

For my clock I thought it might be kinda kewl if there were some gears behind it controlling the motion. One gear is simple enough, but I would like to achieve an eyecandy effect with 5 or 6 gears all turning in the right directions. Is there any way to translate movement from one object into another (rather than animating each element seperately), like say having gear1 turn clockwise, causes gear2 to turn counterclockwise, etc and so forth?

You might wanna try the script by Stefano S68 the thread is here gears scripts