everybody is phail - it's obvious nobody took a course in GR
I don't know much about the eventual fate of the universe, since that requires detailed knowledge of cosmology, which I lack. However, given the original question of the universe getting sucked into a single black hole, it would be a very simle answer. The universe would be infinite and almost flat, and there would be a single black hole. Furthermore, this universe would be exactly described by the Swarzchild (sp?) metric. I assume lack of cosmological constant/Hawking radiation, which might screw things up.
>>10
It's essentially both. When the big bang happened, there was a singularity, which means it happened at one point. That point was also the entire universe, so it happened everywhere.
>>12
We have no experimental evidence of what would happen after getting sucked in, but current theory suggests destruction at (and possible incorporation into) the central singularity. By definition of singularity, it is a point, which is infinitely smaller than a grain of sand.