Need recommendations for drivers to hit some of the rome sites (such as catacombs etc) that are not close to the metro. Would like to make the most of our time and don't want to lose it walking and waiting on buses. Would just need car and driver not a tour guide.

I don't know how much you are willing to spend but we investigated alot of private drivers and Papillion Tours came highly recommended. Their Rome trip was 500.00 Euros for a car with up to 3 passengers. They will drive you wherever you tell them to. Check out their website, PapillionTours.com.