After testing out Plaxo and a few other iCal Syncing tools I have a few extra iCal events in my Calendar. I really did not want to sit and delete all the duplicates. I stumbled across this utility that takes care of it for me. John Maisey had written an apple script that looks through the ical and gets rid of the Duplicates. He has mad both a Leopard and a Tiger Version. Check out his site for the download.