everyone should tunnel
I am with NTL and they run transparent proxies that mess up one or two sites all the time.
Running everything DNS, VOIP, Email, Web through a SSH tunnel to a remote proxy means they can't proxy it to save bandwidth, because the stream of data is encapsulated.
I have a constant tiny stream of compressed data going back and forth, fully secure and protected from Voip bans or port blocking, but comparitively massive bandwidth for movie downloads I levae up to them because the faster the better and I don't care what they do with it.
Also I can use any wireless connection i can find (legally of course) and it doesn't matter how monitors or sniffs it, of course a man in the middle ssh attack would work but they may as well just sit behind me for a simpler attack.