No idea how good this is, but $60 for concurrent dual band and gigabit ports seems worth a try....
http://www.newegg.com/Product/Product.aspx?Item=N82E16833315100
Edimax BR-6475nD 300Mbps 802.11a/b/g/n Concurrent Dual-Band Gigabit Wireless iQ Router, Supports 2.4 GHz and 5 GHz Concurrently with 4 Gigabit high speed Ethernet ports
http://www.newegg.com/Product/Product.aspx?Item=N82E16833315100
Edimax BR-6475nD 300Mbps 802.11a/b/g/n Concurrent Dual-Band Gigabit Wireless iQ Router, Supports 2.4 GHz and 5 GHz Concurrently with 4 Gigabit high speed Ethernet ports