iTunes m4p to mp3 converter/ripper?

So now I have my DRM-free iTunes files. Finally. I had to download about 1,000 tracks from the service in ‘iTunes Plus non-DRM (sort of)’ format.

Theoretically I can stick them on my Nokia.

But I’d like these M4P files I’ve got to be held in MP3 format. It’s just a much more portable medium for music.

So some bright spark out there must have developed an M4P –> MP3 converter? Right? That will convert all your non-DRM’ed Apple iTunes files to MP3 format automatically?

I haven’t been able to find one. Have you come across anything like this?