You might not have known this, but Knights of the Old Republic 2: The Sith Lords had content taken out of the game prior to launch. A group of modders decided to restore the content, this process began in 2009. Now, three years later, the finished project, The Sith Lords Restored Content Mod, is complete! [Queue yub-yub rejoice music.]
TSLRCM Version 1.8 can be downloaded, right now! Before you jump in check out the list of content that's been restored.
PCGamer has an interview with the project's co-lead Zbigniew "zbyl2" Staniewicz, if you want to know more about Knights Of The Old Republic 2 restoration process.