"Don't support it! By the time it's two seasons in, HBO will pull the show from under you & complain about rising production costs. They won't even consider selling off the rights to a studio capable of more. They'll just sit on it & proceed to work on a new show to grab your attention away from the situation. Sort of the way a boyfriend beats her girl, but she keeps coming back in hopes he will change. "
Rome is actually a joint effort by HBO and the BBC, supposedly this season cost 109 million to make.
So by you saying don't support it is helping you kind of prove your point (HBO has done this to alot of their shows).
And if you can find any entity willing to spend 109 million dollars for around 12-13 hours of "product," please let me know, I have a resume to submit.
As for why English accents are used: it would most likely involve Shakespeare's effect on entertainment. In a more classical sense, the English accent is used to portray antiquity. Given an ancient setting the accent gives it a "classic" sense. (I heard alot of Scottish accents in Alexander and it really did not help).