The info leading to act 2 was given to me by the drow lady after an unexpected romance scene...
Regarding evil playthrough, i concur that it was a lot more fun than expected:)
One feedback however would be that i'd be nice to have some better foreplay about the absolute. The evil side should try to seduce you. In my case i went evil cause i did decide to go evil, but really i didn't know much about the absolute before to really be on their side...