Bread-Bakers v102.n028.2

I have just returned from a week long cooking class in Tuscany.  It was a 
wonderful experience and the instructor was a great baker.  We made a yeast 
dough daily using a variety of flours.  One flour in particular was a flour 
with two 00 (zeros) and I have been unable to find it here.  Does anyone 
know a source in the San Francisco bay area where I might be able to 
purchase Italian flour?