Recommendations for a English speaking tour guide for 1/2 or full day in Florence middle of October
Use Giovanna http://www.jewishitaly.org/detail.asp?ID=256
She specializes in both architecture (she took us on a building tour when there was a strike during our visit) and Florence's Jewish history. She speaks flawless English and is someone I would highly recommend.
We paid for the Art Viva walking tour in Florence and it was very nice & informative. For more information (itinerary, recommendations etc.) :
www.artviva.com