There is a great chapter on buying a wok in the cookbook "The Breath of a Wok". You can either buy the cookbook, which I really like or go to your nearest book store and read the chapter. She also lists places to buy woks. I'm not sure if she mentions stores in Boston but I did buy a wok from the store she recommended in NYC and it was easy!
I've ordered from The Wok Shop (San Francisco) online and it was a great experience. I ordered the carbon steel set for my boyfriend a while back; it's a good value, and he's loved it for a couple of years now. The owner also included a note explaining step-by-step how to season it. There were also a ton of free items... a cookbook, chopsticks, and a couple of other small things I think. Minor too, but I loved that it came wrapped in a Chinese newspaper! http://www.wokshop.com/about.html
I researched it quite a bit before I ordered it, and carbon steel was always highly recommended over any other material.
Try using google maps and searching for Asian Markets, you might want to narrow down what you are looking for for a more specific recommendation.
A wok may not work for you if you don't have a high enough BTU burner, Alton Brown did a bit on this and settled on a large flat bottomed fry pan instead. America's Test Kitchen found none of the electric ones worth buying.
I own a large carbon steel round bottom wok, but since moving to an electric kitchen I haven't used it.