Around me we have: Calico Basket, Windham, ME, Cottonweeds, Freeport, ME and Quiltessentials, Auburn, ME. They are all great and I usually hit them whenever I am in that area, though since Calico Basket is the closest they get more of my money.
There is another one called Kedar Quilts that the owner of a B&B runs in the basement of her B&B and that one is wonderful too. The owner is from England and is a hoot - in her late 70's and has more energy than I do. It is the farthest away from me and in the winter with the snow and ice I don't go there as often.
And then there is Marden's, an all purpose surplus store that carries quilt shop quality fabric. If you are looking for somethng in particular you might not find it, but I bet you would not leave there with out buying something! They carry all the name brand designers and it is usually under $3.00 a yard!