Accommodation
We strongly suggest to looking for hotel along bus trip.
Here http://maps.google.it/maps/ms?ie=UTF8&hl=it&t=h&oe=UTF8&msa=0&msid=102163358171818030455.000474a78669521366dbc&z=12 you can found a useful map with useful information
The color line are bus trips.
The green line is the 90, form Termini station to Largo Labia, along this trip you can found Defrag_ and many hotels.
Please note that 90D is another bus line (yellow line) with different trip.
Termini and Nomentana are two rail station that can be used to/from Fiumicino airport.