There's a whole gaggle of us granite-staters here. :D Here are some of my picks for you.
Pickering Farm in Richmond. Their specialty is colonial reproduction fabrics. Great place.
http://www.pickeringfarmquiltshop.com/
Quilted Threads in Henniker. An awesome place! They will be featured in the Spring 2011 issue of Quilt Sampler that comes out May 11th.
http://www.quiltedthreads.com/
Peggy Anne's in Concord. She carries great bolder fabrics but is right downtown by the State House, so parking can be tricky.
http://www.peggyannes.com/