Newegg offers the TRENDnet N150 802.11n Wireless Router, model no. TEW-712BR, for $6.99 with free shipping. That's $3 under our September mention and the lowest total price we've seen. (It's a current low by $11.). It features an antenna, four 10/100 Ethernet ports, and up to 150Mbps throughput.

Update: Add coupon code "NAFBF14A" to drop it to $6.64. Coupon ends today at 11 pm ET.