If you're tired of that old cell phone ring and ready to make yourself a Radiohead or Beyonce ringtone, ToneThis is a fair starting point. The freeware application has the muscle to make ringtones (or the higher-quality true tones), video ringtones, or wallpaper out of files in your collection, and send them to your phone or to a friend. It's also dead-easy to operate, letting you select a small segment of a song or video to turn into a ringtone, or crop an image to fit your cell phone's interface. Once selected, the ringtone or image is uploaded to the cell phone carrier, and then downloaded to the phone. You'll also be able to search Flickr from the ToneThis interface for free, legal images to use as wallpaper.