BlackberryTunes.com: 7100t ringtones made easy

These guys charge $20 a year and will convert an unlimited number of MP3s to 7100 polyphonic ringtones for you; they then put them up on a Web site for download. Seems well worth the $$$, as doing it yourself is a real pain in the ass.

I went ahead and subscribed; will update this post after I've had a chance to try them out.