usenet works for me. i use free servers, but it gets the job done for downloads (unfortunately I can't upload this way).
torrent sites also work, but o/c so many lately now have no fan-cut (or even no custom subbed) discs, and not everybody can access all torrent sites, not even the greatest tracker collectors (you can go for making a .torrent file with a bunch of public trackers in tracker list, and use DHT, etc, but just not list the torrent at any public tracker site. you just hand out the .torrent file to a few people, post it at a filesharing site that doesn't bar countries, etc, or host .torrent at a bunch of file lockers to give some choice and in case links die).
If you want to go for private tracker, I think Bit-HDTV allows custom and fan-made discs. BitHQ no longer allows fanedits (they do allow fansubbed dscs). Cinematik would probably allow it, but may want to get mod approval. But tik doesn't allow anon uploads, whereas BitHDTV does (for higher userclasses). Maybe also HDSpace would work. Maybe HD-Torrents. Maybe CHDBits. Maybe HDRoad. passthepopcorn may allow it (I would get approval first), and some user classes appear to be allowed to upload anon. Either way, wherever you upload it, perhaps you can allow people to port it to a few other sites, to give people a shot at different sites.