TigerDirect offers the TP-LINK AV500 Mini Powerline Adapter Starter Kit, model no. TL-PA411KIT, for $39.99 plus around $4 for shipping. That's a buck under our February mention and the lowest total price we've seen for this kit. (It's a current price low by $16.) These adapters allow you to create a network using your home's existing electrical wiring and feature speeds up to 500Mbps.