Worst case, some of the Madison shops stock Surly. I've seen Long Haul Truckers on the floor over at Willy Bikes.

When I was bike shopping, I found it was better to just go to the shop and tell them what I wanted. Usually the salesperson would get rather bug eyed, and then calm down when they realized I *knew* that I was asking impossible things, and was willing to compromise to get a good enough bike. (the totally dumbfounded look is pretty obvious, and would send me off to another shop... ran into it when we were shopping for my sister's bike)