Hi Kate! Have you ever watched the HBO series "Rome"? What do you think? I believe that that series, along with your books, are the best way to immerse yourself in ancient Rome.
I am a HUGE fan of the HBO "Rome" series. My only regret is that it didn't run longer, so we didn't get that spoiled rushed-up ending for the second season. But it's still a wonderful show; very immersed in the feel of ancient Rome.