Can't disagree with Ian (I looked at his Roma link, we where in Rome the same week )
I loved the Pantheon area, basically we just picked a restaurant. I'd go back to Rome at the drop of a hat but especially for the gelato at San Crispino near the Trevi Fountain and the espresso and espresso granita at Tazza D Oro near the Pantheon.
I could make any walk in Rome include those two locations
What area of Rome are you staying in?
Jay