Rilauven

Hi All, I remeber reading somwhere that if you beat Kotor2 twice, once as light side and once as dark side, you can then begin a new game and have new conversation options show up. So, a few questions about this: Is this true? and if so what sorts of new dialogue options do you get? If So, is it neccesary to play two full games or can you take a save game near the end and use cheat codes to swing yourself from light to dark and fool the game that way? (I hate trying to play dark side) If there are unlockable/secret conversation options, could this be a way to access some of the cut content people keep talking about? Thanks!