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· Metropolitan Train to the Metro: Two floors up from baggage claim you'll find the Stazione FS, or train station. Departing from the left track is the cheaper of the train options, the Metropolitan, which connects you in town with Tiburtina and Ostiense Stations for accessing subway line B. Tickets can be purchased from machines right at the station; don't forget to stick your ticket in the validation machine before boarding!
Total cost: €5.50 per person, each way. Tack on €1 for a metro ticket.
Total time:35 to 45 minutes

· Leonardo Express Train to the Metro: To go direct to the main train station in Rome, Termini, you'll be hopping this train on the right track in the Stazione FS two floors up from baggage claim. This is always our favorite option, since it's way cheaper than a taxi and yet still quite direct and fast. Don't expect any beautiful Roman scenery, however, as the route into the city is pretty blah. From Termini, you can hop on either subway line A or B to your final destination. Don't forget to stick your ticket in the validation machine before boarding!
Total cost: €11 per person, each way on the Leonardo. Tack on €1 for a metro ticket
Total time: 35 minutes

· Shared Shuttle Van: Not too much cheaper than just spring for a taxi, a shared ride van can at least better accommodate groups of friends with lots of luggage. There will also be air conditioning and door-to-door service, which is more important than you think during the hot summer months.
Total cost: €40 for the first two passengers and luggage, and €5 per person after.
Total time: 45 minutes

· Taxi/Towncar/Limo: Arranging a towncar or sliding into the backseat of an Italian taxi just seems so easy, doesn't it? It is, as long as you're in the back of an official white taxi. A dark-colored car, even if it looks like a taxi, is nothing but an unlicensed cab operator trying to con you out of anywhere between €60 to €80; you might as well wave over a limo.
Total cost: Taxis have a set fare of €40 from the airport to the city. An extra €1 per piece of luggage and a tip also applies. Towncars and limos are obviously more expensive, ranging from €60 up to €150, depending on how big you want your car (we recommend not overdoing it in Rome; the streets are small) and how far away from the city center you're headed.
Total time: 30 minutes

Related Stories:
· Rome Travel Guide [WikiTravel]
· Rome Travel Coverage [Jaunted]
· Airports Coverage [Jaunted]