Automated Mouse Click.

I was wondering if there is a program that will click your mouse for you every 1 minute or 5 minutes or so or another program that will clikc your mouse after it moves and stands still for liek 2 seconds. i used clicknomo, but the demo expired so i'm looking for another app. btw, is there anyway to do this with automator or download a script for automator.

thank you.