Staples offers the Netgear N900 Dual Band 802.11n Wireless Gigabit Router for $49.99 with free shipping. (Office Depot and OfficeMax charge the same.) That's the lowest price we could find by $27. It features four Gigabit Ethernet ports, two USB ports, and data transfer rates of up to 900Mbps.

Update: The price has increased at Staples; however, Office Depot and OfficeMax still offers it for $49.99 with free shipping.