Power and its pursuit drives behavior of the dominant sex; female dominated society would simply be male dominated society with breasts.
I agree that the pursuit and exercise of power would be as important in a matriarchal society as a patriarchal one, however I think the nature of power will be different. I remember a similar thread some time ago where someone said that governments in a female-dominated world are likely to be less violent but more oppressive. In other words less killing etc but far more psychological control, ie propaganda, brainwashing, etc (within the contraints of technology, as this has only really been possible with the advent of the mass media).
Also, despite several posts talk of female soldiers/warriors, I personally believe that any female-dominated society would still have a male-dominated military. It's just commonsense being on the whole physically stronger men will dominate in the military (especially in the past where physical strength was even more important in the military).
This also makes the use of propaganda more important (ie if you give an oppressed group weapons, it best to make sure they've been conditioned to accept the status quo).