Consider that the person you want to go to for fittings may not be affiliated with the same shop you wish to buy bikes at. Here's some specific bike fitter recommendations:
http://www.bikeforums.net/showthread...l-Call!/page12
Originally Posted by
dnuzzomueller
Back Bay: Some people find their attitudes a little off-putting and have had the impression of a "looking down their nose at you" attitude. Even being friends with all of them I even get this sometimes.
Strange... I've had exactly the opposite experience at Back Bay. The Back Bay folks I've met were extremely soft-sell and non-judgemental, unlike a lot of other shops I've been to in the area. I've sent a number of people there over the years and they've all gotten the same vibe. Back Bay is, I believe, still the only shop in town that does "free tune-ups for life" on any new bike they sell.
Also, don't forget about International Bicycle Center on Brighton Ave. I've generally gotten a much better vibe from them than from Landry's or Wheelworks, but all three of those shops are so huge that YMMV greatly depending on who you're speaking to and how busy it is when you go in.