re: Activities in Rome?

Get Rick Steve's book, download his audio guide app, bring a splitter with a couple head phones, and hit up all of the top rated items on trip advisor that intrigue you. Also look at TAs top restaurants, never had a single bad experience doing this. I bought the Roma pass and thought it was well worth it. Also, I would buy some data usage over there for your phone. My gps was a life saver!