Where to stay?
If you are considering one of the ubiquitous hotels in the Termini train station neighborhood to be your "home base" while in Rome, then - go for it! I cannot tell if the hotels in the nearest proximity of the station are really any threat (thieves, pickpockets etc stock....), since I did not encounter anything of the like, but there are many hotels in the area to choose from, even some few hundred meters (yards) away, for your comfort. The advantages of staying here are numerous. The proximity to the train station, which has direct trains to Fumicino airport (one way ticket was 9 euros in March 2005). Many affordable trattorias in the area. At least two grocery supermarkets (one downstairs in Termini station and one, larger, on the intersection of Via Goito and Via Montebello, some 400 yards from Termini). Close distance to old Rome (Fontana di Trevi is one mile away). Metro subway access (Termini station is the place where the two metro lines cross). Multitude of other public transportation (busses). Piazza de la Republica (200 yards from Termini) has probably the best money exchange facility in Rome (good rates + NO service fee; look for an easy to spot "CHANGE" sign). Uh, by the way.... do NOT change your bucks at the airport, 'cause you shall be ripped off to shreads! If your stay in Rome is limited, then take a tour on the red double-decker touribus (line 110) - also from Termini! The price was 13 euros (March 2005), but it is worth it. You can step off and back on as many times as you like, during one day (9:00am - 7:30pm). At the Piazza Venezia stop of this line, you can also catch an Archeobus line that will take you to the catacoumbs - ancient christian graves.