If, like me, you have this annoying problem where iTunes insists on launching every time you press a multimedia key on your keyboard (for instance play/pause/next/previous song) the fastest and most effective way to work around it is to get rid of iTunes completely:
Move iTunes to the trash (from the applications folder); Move FrontRow to the trash (from the applications folder); Empty the trash; If emptying the trash fails due to the iTunesHelper application being running do the following:
Open terminal/console: Type "ps aux | grep iTunes" You should see the process in the list. Get it's process id (PID) Type "kill -9 <pid>" to kill the process Empty the trash
Extra step, remove iTunesHelper from the list of login items (system preferences -> accounts -> login items).
Use SongBird instead :)