Haven't been to W&S recently ... not since last year when I was shopping for tires, but the one I went to (Fox Point) had Trek and Salsa for sure ... Their website sucks (a recent redesign really blows) but I see they carry Focus now too.

There's Erik's Bike Shop in Whitefish Bay (I took my Trek there recently for service) and I know they carry Specialized and Raleigh (have flat bar road bikes in both). I had an excellent experience with the service on my bike and they're super friendly. I think there's an Erik's in Madison if you're out that way (sounds like you might be).

I bought my Kona last year at Cory the Bike Fixer in downtown MKE. They carry Jamis as well. Small, independent shop with a bunch of bike gearheads really. South Shore Cyclery in Cudahy carries Cannondale I believe.