Just color choices. However, Individual Full leather has LESS leather coverage than non-Individual Full. I think it's the dash and upper door trim that miss out on leather on Individual Full. You can request coverage of those areas in leather if you want to go through the full Individual process rather than just selecting an Individual color, but it will likely cost quite a bit more.
EDIT: See this attachment detailing exactly what gets covered in what material: http://f10.m5post.com/forums/attachm...4&d=1328734101