Combat swords yeah, most efficient, practical, uncomplicated method.
I've just respec'd Subtlety though (59, just hit outlands ... got 2 new, nice shiny daggers) ... just to give it a whirl. I seem to make a habit of this, I respec'd my Warrior and Mage to a totally different spec when I hit outlands, perhaps my inner-psyche demands a total change once I hit expansion content.
Still trying to decide whether to go all out and try Hemo as a main attack, or stick with SS ... dunno, but I intend to be doing some horrible sneaky, backstabby goodness, and intend have a boatload of fun doing so ;-)
Will report back once I have a clearer idea on how it really is ;-)