This fall there is a new wine tasting/event at the end of September and beginning of Ocotober, and the annual Florence Wine Event has been pushed later into the year.
The new event is Wine Town Firenze. I need to take more time checking their site to know exactly what is going to happen these few days, but it seems to be a mixture of wine, culture, and Florence.
The other annual event which we have been attending for years is the Florence Wine Event - this has traditionally been at the end of September, but for 2010 it is scheduled for November 19th to 21st. Should be cooler then - hope it isn't wet!
I will post more details about these soon on Florence Wine Merchants.