TigerDirect offers the TRENDnet Powerline AV Ethernet Adapter Kit, model no. TPL-303E2K, for $59.99. Coupon code "BQW56965" slashes it to $39.99. With $2.99 for shipping, that's the lowest total price we could find by $18, although we saw it for $18 less two weeks ago. This plug-and-play Ethernet kit uses your existing electrical outlets to create a secure high speed building-wide network.