Open Torrent Trackers

Does anyone know of any good/popular Bittorrent trackers for legit (aka legal) material? I'm thinking about putting together an EP for one or more of my songs that I've released the source to. It would include the original song, a collection of the best remixes and possibly the source for the track as well.

I don't really want to deal with the hassle of trying to sell such a thing, but I'm thinking a big free torrent would get the job done nicely.

Please drop me a line if you know of any trackers I could use to distribute this thing.

Brad Turcottemisc