Agree about season 5 of The Wire, but still loved it overall. You should definitely check out Breaking Bad – really, really good. I’m assuming you’ve already seen Band of Brothers? Another classic.
I absolutely loved the two pilot episodes for BSG, and the first series was good, but thought it lost its way a bit towards the end. Continuing the space theme, albeit on a much lighter note, Firefly is well work a look. Really well written and pretty damn funny too.