Fry's Electronics offers the ASUS Black Diamond Dual-Band 802.11a/n Wireless N600 SOHO Router, model no. RT-N53, for $54.99. This $30 mail-in rebate cuts it to $24.99. With free shipping, that's the lowest total price we could find by $20, although we saw it for $5 less four days ago (since expired). This is a concurrent dual-band router, meaning it can run two separate full-speed 802.11n wireless networks at the same time. Rebate expires December 5.