I second The Quilt Haus in New Braunfels. 651 N. Business IH35, 830-620-1382,
www.quilthaus.com
Quilter's Travel Companion lists these in SA:
Creative Sewing Center 11777 West Ave, 210--344-0791,
www.creativesewingonline.com
Sew Special Quilts, 24165 IH 10 West #421, 800-891-8279,
www.sewspecialsa.com
Seventh Heaven Quilt Shop, 6706 N. New Braunfels, 210-822-9980,
www.seventhheavenquiltshop.com
Memories by the Yard, 8015 Mainland Dr, 210-520-4833,
www.memoriesbytheyard.com
Three others are listed that do not have ads in the book so don't know web info, etc.
Plain Jane's Folk Art
Las Colchas
San Angel Folk Art Gallery
Hope that helps!