The Quilt Farm in Boston or Colden (officially the store is in Boston but it's at the Colden exit)
Sew What just off Transit Rd in Williamsville (not too far from the airport
There are two shops in East Aurora that are both nice - Aurora Sewing Center and The Carriage House.
Pine Grove Quilt Shop on Delaware Avenue
There are actually quite a few more in the area - maybe someone from Buffalo can give you more names.
Cindy