Wwe will be spending a week in Tuscany followed by a cruise out of Venice. We plan to rent a car for a week in Chiusi. We will either fly into Florence and out of Venice, or fly into Rome and out of Venice. Assume it is closer to fly into Florence than Rome since we are staying near Chiusi. Just wondering if there would be several trains daily to Rome, florence and Venice, as this might influence our choice of city airports. How long of a train ride would it be to Venice, and lastly, should we be brave and decide to drive to Venice and drop off the car there, how long of a drive would it be?