I've known about HomePlug for a while, but an article by James Fallows in The New York Times (Your Money > Techno Files: Is Broadband Out of a Wall Socket the Next Big Thing?) reminds me that this might be the perfect way to pump video and sound into my home theatre. I was worrying that WiFi-G might have too much interference, but if HomePlug works well at high speeds, that would be the way to go...