Everyone's listed most of the current stuff. I myself have also along with all the shows listed here (except Spartacus, can't stand it myself) and approve of them. Weeds even.
I'd also add!
United States of Tara. My wife got me into this, it's about Multiple Personalities. D.I.D is what they call it now, at least according to that show lmao.
Once Upon a Time is an ABC show currently going, I'm watching the first season now with my wife and it's sucking me in.
Grimm started off strong, it's sort of wearing thin for me now, I'm gonna try to keep watching it and see where it goes.
Also I REALLY enjoy the American version of "Being Human" that might not be everyone's cup of tea though.