Thanks again to everyone for the advice. I had a fun trip to Spokane, and I posted a report here:
http://www.bikeforums.net/showthread.php?t=50033
The Centennial Trail was great, but I didn't have the best luck at Two Wheel Transit. Beautiful shop, and I loved it that they had a Co-motion Nor'wester in the front window. I don't think they liked me much, though. Probably because I made the faux pas of bringing my bike in the shop with me (no lock, only five minutes to stop and get a trail map). I didn't find the map, and when I asked the person behind the counter was pretty dismissive and acted like he hadn't heard of it or the trail. Hmmm.
Anyway, I would've liked to see more of their bikes, but I had to move on. Maybe next time I'll return, but in dress clothes and a tie, and no bike with me.