I've set up a tracker on this website and am serving up my podcast (A Brit Abroad) as a BitTorrent. The torrent file is here.

It'll be interesting to see if this works out.

Btw, the best torrent client by far is Azureus, the only thing I had to do to get it working was turn of it's UPnP support. Options->Plugins->uPNP and uncheck "Enable UPnP".