iMacros is an add-on for firefox. Download it and install it. Once installed open it up, it should be a side bar. Go to the "Rec" tab. Then hit "record" and it will log your movements.
So I started at the voting webpage, which was already open (Android Cup Final: Google Nexus One vs. Droid Incredible (Poll Closes Monday, 7/5 at Midnight)). I then clicked the radio button to vote for the Incredible, and clicked the back to poll button.
That is one cycle, save it, find it in the "play" tab of the add-on and on the "Repeat Macro" section select how much you want it to vote in the "Max" box
Why didnt I see this yesterday for the Droid votes...

<-----plans to use this to stuff ballots for the N1

