I like Singing Dog, although I haven't been there in quite a while. I'm guilty of buying most of my stuff online now. Anyway, it's the kind of place where you can go in and talk to knowledgeable staff that know about music and can help you find what you want. The last time we were in, we were looking for something pretty obscure and they had it on the shelf. They moved within the past several years, but are really closed to where they used to be. Their old building is one of the ones on High st. that got torn down for the re-construction.