Newegg offers the Rosewill 802.11n Wireless PCI-Express Adapter, model no. RNX-N250PCe, for $18.99. Coupon code "EMCPCWP229" drops it to $13.99. With free shipping, that's $2 under our January mention and the lowest total price we could find by $5. It features WEP, WPA, and WPA2 encryption. Coupon ends July 16.