In SF Britex Fabrics is a must, not a quilt shop but amazing fabric store. Here are some of my favorite shops in the SF "ish" area: Thimble Creek in Concord, Cotton Patch in Lafayette, Quilters Quarters in Stockton, Eddie's Quilting Bee in Sunnyvale, Prairie Queens Quilt Shop in San Jose - there are so many that I haven't visited but will some day! Also, in San Jose there is a museum of Quilts and Textile Arts that I hope to visit some day also!
(Is that a Cavalier in your avitar?)