I have owned both. If you have a well equipped PC and you are pleased with the work you are doing there is no reason to switch. You would need to buy a top of the line MAC and the application software. But if one day you plan to work in the industry somewhere, your FCP skills may help get you a job. Also with FCP you can have access to Motion, Livetype and DVD studio which are all great apps. I have been using FCP for the past 3 years and I would not go back to Premier Pro.