Visitors Planet - How do I get from Florence to Rome?

How do I get from Florence to Rome?

I would like to start at the Santa Maria Novella train station in Florence. Price and estimated time for the trip is appreciated!

it takes approx 2 1/2 hours Peak times (economy) is $58.00 (USD) first class is $82.00 (USD) Hint: get to the station early, when I went (Rome to Florence) the ticket sales sent me to the wrong track and we missed the train. Enjoy your trip Florence was the highlight of mine
Schedules and prices for the trains here in Italy are at: http://www.ferroviedellostato.it/homepage_en.html On the fast trains, it takes 1 hr 35 min and costs 44 euro in 2nd class (approximately $52.50 at today's exchange rate), but you can get a discount for early purchase of the ticket - for 7 day advance it's 37 euro, for 15 day advance 31 euro. There are also a few regional trains that cost only 16.10 euro in 2nd class, but take 4 hr 11 min for the trip.
... and don't forget to timestamp your tickets in one of the (unmarked) little yellow boxes on the platforms before you board or you'll get a fine on the train!
Regional trains are slow but really cheap: a ticket to Roma Termini costs 16,10 euros, to Roma Tiburtina (not far from the centre and connected with the line B of the subway) 15,70 euros. The fastest trains are highly expensive (44 euros!)