I'm on a cable line too, 20mbps from Insight Cable.
They will have no idea what you are downloading, there will be no cease and desist letters. That would be impossible, the copyright holders CANNOT connect to you. Usenet really isn't p2p, you connect to no one. The usenet providers don't even monitor what you download, only if you choose to upload something - they have to cover their asses.
Like I said above,
your ISP doesn't give a shit what you download. They only care about the amount of what your downloading. And if they view that has excessive they may throttle you, or like they did in my case, cut off your service.
