Best Buy offers the refurbished D-Link RangeBooster Dual-Band 802.11n Wireless 4-Port Router, model no. DIR-628/RE, for $39.99. With free shipping, that's $23 under the lowest total price we could find for a new one. Sales tax is added where applicable. It features four 10/100 LAN ports, one 10/100 WAN port, WPA/WPA2 support, VPN pass-through, and more.

A 30-day warranty applies, although it's unclear who supports it.