newegg offers the TRENDnet Powerline AV Ethernet Adapter Kit with Bonus Plug, model no. TPL-304E2K, for $44.99 with free shipping. That's $10 under our April mention (even after that deal's $15 gift card) and the lowest total price we could find by $28. This plug-and-play Ethernet kit uses your existing electrical outlets to create a secure high speed building-wide network. It also features a power save mode, which claims to reduce power consumption by up to 70%.