Just noticed that the letsplayarchive.com has added a very elaborate Mask of the Betrayer playthrough to their database. May be worth a read through if you aren't planning on playing the game or want to reread what the fuss was all about.
http://lparchive.org/LetsPlay/MotB/
The author also did a pretty verbose "Let's play" for Neverwinter Nights 2
http://lparchive.org/LetsPlay/NWN2/
http://lparchive.org/LetsPlay/MotB/
The author also did a pretty verbose "Let's play" for Neverwinter Nights 2
http://lparchive.org/LetsPlay/NWN2/