I'm mildly surprised that this hasn't been mentioned. Or maybe I'm just blind. But I'll let the links speak for themselves.
Planescape, Dungeons & Dragons, their logos, Wizards of the Coast, and the Wizards of the Coast logo are ©2008, Wizards of the Coast, a subsidiary of Hasbro Inc. and used with permission.
Already covered, but yeah I'm also surprised at the lack of enthusiasm. I'm definitely playing it through in my spare time right now (which is few and far between).
http://www.planewalker.com/forum/new-life-planescape-torment