Further, if it was me, I'd stick to the 'big' companies like Linksys, Netgear or D-Link. There is a lot of info on them, should you need help. Other than the dual band, the best advice I think I can give (since you shot down my WNDR3700, haha) is to find something with the dual band then look for something aesthetically pleasing, whether it be internal antennae, gloss look, whatever the case may be, since a router actually has potential to be seen.
IE, for me, I like internal antennae and have mine mounted on a wall to face the majority of my house, but it's in a closet, so I don't care if it's blue black purple or white, as long as it's sleek and hugs the wall good so my cable modem tucks in nicely next to it (yeah, I'm a little AR).
Hope that helps also. A little vague, I know, but other than the dual band requirement for me, the next step is compatibility, usability and aesthetics.
Might also look into www.dd-wrt.com and compare the ones you like against their database. I have a Linksys WRT160N (single band, low end), and loading the dd firmware improved my router speed and range tremendously over Linksys' releases.
(Edited for typos)