mwave offers the PremierTek PowerLink 802.11n Wireless USB Adapter, model no. PT-H5DN-2770, for $11.99 with free shipping. That's a buck under our October mention and the lowest total price we could find. It features a max speed of 300Mbps, 5dBi dipole antenna, support for WEP, WPA2, and WPA-PSK encryption, and more.