does anyone know if there is gonna be a sequel to planescape torment? and whats all this about a planescape series of books? where can i get them?

Sorry to dissapoint you, but there won't be any sequels to Torment in the near (or distant) future.
About the books... There are really very few and even those aren't something you'd call really good quality, but at least they make you a bit more familiar with the Planescape multiverse. I listed them all at http://www.sorcerers.net/Books/index_ps.htm

Enjoy.