Here's where the "Geek" comes into the Geekgirl (yes, I've tried, and there's no good way of putting that!!).
For any self-respecting nerd who wondered what an explosion sounded like in space (i'll give you a minute on that one...), Battlestar Gallactica was excellent. Despite the obvious science faux pas, it really was great. Anyway, pleeease discover it's prequel series, on now somewhere near you, called Caprica.
I'm very impressed so far. The theme is the inner machinations of a rising monotheistic cult, dancing around terrorism and suicide bombings, and is really very compelling. It is entertaining and action packed, as well as being relevant and intelligent. So far the series has avoided evoking the Deus Ex Machina that it's counterpart did annoyingly often, and I'm praying they keep it that way (pun fully intended).