Looking for Linux Automated Backup Program

I have been combing sourceforge.net and Google for an automated backup program like Powerquest’s Datakeeper (bundled with Partition Magic). I’ve found rsync and rdiff-backup, but neither have a GUI interface or any type of management application. So in order to backup several directories, I would have to write a bash script and have several cron jobs scheduled to run every hour or so. Datakeeper backs up files on the fly, as they are changed. Any one know of such an application that will run on Linux?