eBay with Heights Mobile has the open box Netgear WNDR3700 802.11n Draft 2.0 Rangemax Simultaneous Dual Band Wireless Gigabit Router for $68 with free shipping. Features simultaneous operation on 2.4 GHz and 5.0 GHz frequencies for combined 600Mbps speed, and 680 MHz MIPS 32-bit processor.
Have it running DD-WRT. Love it. Work perfectly for what I'm doing.