I was awake through my surgery. It was a strange feeling, but not in a bad way. The worst part was that I was bored for the entire time, wish I had brought my book in with me.
I could tell that things were going on around me, but I was positioned so I was looking into a corner, and was strapped to the table so there was no chance that I could move. The 'happy juice' in the IV left me feeling slightly detached from everything, so it was almost like it wasn't happening to me. The spinal worked great, I didn't feel anything for hours!