I haven't done much bitorrent. When it comes to Who/Torchwood stuff I have a source for direct downloads. It is flocked though, so I can't provide links.

My philosophy on bitorrent/downloads is that if it is not available for me to get through a legal means then it is fair game. If it's something I like and it later becomes available I will buy it. I won't download movies that are playing in theaters, or even ones available to rent.