I noticed there hasn't been post here in a awhile so here goes. I travel a lot and stop by just about every fly shop I go by. There are a couple of shops that stand out of the crowd for me. In Bozeman I like Montana Troutfitters
Montana fly fishing - Montana Troutfitters - Bozeman's oldest, most trusted trout shop, they were nice and helpful. I've called the owner Kris to get info and he's always willing to talk fishing. Not all the shops in the area were like that.
If your every in Oregon, on the Yakima, I like Worley Bugger Fly Co. a lot. Great shop and they won't steer you wrong. Super guys to talk to and deal with.
Worley-Bugger Fly Co.* Your Complete Yakima River & Central Washington Outfitter!
As far as my home shop, well I go to Bob Marriott's, they know me there and they have everything under the sun so I can always get what I'm looking for.
Just my 2cts worth. I stopped by every fly shop on my recent trip to the Snake. The South Fork Lodge had a pretty good shop and were very nice for a high volume shop. I didn't really like the shops in Jackson very much, they seemed really busy and people weren't as friendly. The West Yellowstone shop are pretty good with most helpful guys coming from Jacklin's shop. Although Bob didn't like stomping through the shop with my wet wading boots on.