If you are useing Bit Torrent (or any other P2P sharein program), i would highly recommend useing a program called Peer Guardiian or something simular. it might take a while to figure out how to set it up correcty but when you do, its almost 99.8% effective in preventing your ass from caught by the RIAA or whoever is looking for poeple who use the P2P networks.
there are only two things that are bad about this program:
1) when its loading the blockin data base it will take a while and use most of your CPU process until it finished
2) it will block some legit sites, like abcnews.com, cnn.com, nws.noaa.gov, any military site or government site just to name a few
a plus to this, is that if your surfing the net, it will block some advertising and spyware sites
you can find the program http://homepage.ntlworld.com/tim.leonard1/pgupdate.htm?asdasd