Being in the podcasting business means taking BitTorrent seriously.
To make our podcasts more available, Carl and I, along with a bunch of other folks, seed for .NET Rocks, Mondays, Hanselminutes and dnrTV.
All along I've been using Azureus, which has the plug-ins for RSS so that the pwop shows are automagically downloaded.
Azureus is one of the original BitTorrent clients, written in Java, and is a classic example of what happens when really smart people write software. It has every feature imaginable, barely documented and generally unintelligible. Its so bad that Azureus has its own wiki so that people can help each other try to understand it.
Then along comes uTorrent. Its a regular Windows app, and while it doesn't have as many features as Azureus, it has all the ones that matter. And it makes sense, and it works.
So, I've switched. And I'm not alone.