Went to the garment district in downtown Los Angeles on Saturday and got a real eye opener. Micheal Levine sells all the fabrics that the LQS's do, but all in one store! The prices aren't much different, but the selection is amazing. If you are anywhere in the southern California area, it's worth a trip. If not, here's a link to their web-site.
http://www.mlfabric.com/