We're going to Italy!!!

We fly into Rome and will spend four days there before taking a bus north to Siena, a small Tuscan, medieval town south of Florence. We'll spend one night in Siena, then on to Florence. We'll be spending 4 days in Florence, but two of those days will be spent day-tripping outside of Florence - one day in Pisa and the Cinque Terre, and one day in Lucca, another small town in Tuscany. After Florence, we head to our last stop in Venice. We have one full day there, which, from what I understand, will probably not be enough! And then back to reality in MN!