Originally Posted by Kathios
You need to go to one of the Marden's stores. They are a surplus store and have the best prices on fabric, and a wide selection. There is a lovely LQS in the area:
http://www.kathiesquiltshoppe.com/
I have never been to a Mardens but I think the ones in southern Maine have the best fabric selection. It is my understanding not all Mardens have fabric but I think the one near Portland does and OOB is a stones throw from Portland.