Newegg offers the TP-LINK AV Nano Powerline Adapter Starter Kit, model no. TL-PA2010KIT, for $29.99. Coupon code "EMCWHPA58" cuts it to $19.99. With free shipping, that's $5 under our October mention and the lowest total price we've seen. (It's the best price we could find today by $9.) These adapters allow you to create a network using your home's existing electrical wiring and feature speeds of up to 200Mbps.