one answer
peerguardian 2
puts media defender's servers on a blocklist.
pretty much they were fucking up my entire household's bandwidth because I grabbed a torrent for a season of battlestar galactica. so I had some pissed off wow addicts to figure out the problem for. apparently they piggyback my request to download data as an invitation to flood the hell out of my IP address with bunk garbage data to my torrent program.. Problem is it was coming so fast and from so many computers that it was overloading the router as long as my IP still showed up on the DHCP table.
another link to toss into this thread
http://atunu.blogspot.com/