Here is a nice collection of ringtone-length
demotunes. I think they're all from the amiga; I don't recognize a lot of them. The MP3s are too big for my VX4400, so I had to transcode them to 16kHz 16kbps. Anyway, now I've got groo's "Peverly Hills" tune as my default ringer, and a couple others on there just because.
Of course, this whole thing is like Dwayne Dibley's lunchbox ("triple-thick condom... you never know!"). I got something like six whole calls with my Futurama ringtone, and half of them were on vibrate anyway.