Newegg offers the Rosewill Powerline AV mini Wall-Plug Adapter, model no. RPLC-201KIT, for $24.99. This $10 mail-in rebate cuts it to $14.99. With free shipping, that's the lowest total price we could find by $30. This kit includes two adapters that allow you to create a network using your home's existing electrical wiring, with data transfer rates of up to 200Mbps. Rebate expires December 6.