Available Ethernet over Power lines... (Score 1)

I would suppose you need a special modem designed for the internet pipe coming from the power co. BUT what are the possibilities with the currently available Ethernet over Home Power Adaptors? Could you pick up signal from the power co? Would the adaptor and the power company interfere? I don't know the specifications of either technology so this is why I ask. It would be interest to go to CompUSA and get $60 adaptor and have 1mb u/d for free....