If you want an more accurate imitation of tghe guts and ethos of C1BC Roman politics then Sopranos is actually your best model of the series mentioned her. Rome is great fun and as TV history goes surprisingly close to the truth. The adolescent Octavian is spot on - even when they dress him up in Early imperial sculpture he still looks like a weasel.

Series 2 seems good so far. THe Pullo Vorenus thing seems to be a bit soap opera, but the political side of things seems to be good.