Yes. What she said.

If there IS an outside the Universe (which seems to be likely from current theories in physics) that would be something *else*. Unless the Divine is the multiverse, which is theoretically possible but still self-contained. (honestly, the physics involved with multiverse stuff REALLY makes my head hurt!)
But whatever there is, it's self-contained. There is no extra part outside. Like humans - we're more than the sum of our parts, but we don't have an extra part *over there*!

Thanks HeartShadow and Sunflower! Distinction clear now.

I still don't know where I'm standing about this, but for what I've read until now, FlameKeeping sums up my beliefs very well. I need to figure out the pantheism/panentheism thing though. I'll keep on reading about that.