Newegg offers the Netgear N300 802.11n Essentials Edition WiFi Range Extender, model no. EX2700, for $35. Coupon code "EMCARPA35" cuts it to $29.99. (Amazon charges the same.) With free shipping, that's the lowest total price we could find by $5, although we saw it for a buck less a month ago. It supports 300Mb/s transfer speeds, is compatible with any wireless router, and plugs directly into a power outlet.