Ahhh yeah, we got the tail end of some stuff last night. MONSTER gust front and plenty of rotation. Supposed to be some more nasty stuff in your area tomorrow, in fact I would go as far as to say conditions are such that you should probably keep an eye on the weather.
Those are some nice pictures. I forget the technical name for it (Im not a meteorologist, I just play one) for when the clouds are all bubbly looking on the base like some of yours were, but it is a sign of great instability in the atmosphere. Some of the darker pictures i see 'signs' of some rotation, but its hard to tell from still frames whether or not it was actually rotating.
Also keep in mind there are three stages of rotation. 3D Shear, Meso and TVS. A TVS if kind of a pre-cursor to a tornado and stands for tornadic vortex signature. So the signs of rotation I see in a couple of your pics may have been rotation but may have not been severe enough too be a real threat.
