Gary Rosenzweig shows you how to use GarageBand to make your own iPhone ringtones. You can use music and effects from GarageBand, or import your own sound files. Then you can transfer them to your iPhone via iTunes and assign them as your main ringtone or specific ringtones for specific contacts. You can also go to http://macmost.com/iphoneringtones/ to get some free ringtones to use.
