From what I can tell the K70 is much the same as the K60 just being an update to that model. I would ask on the Corsair Forums first but I believe that the K60 Drivers will cover both versions.
http://www.youtube.com/watch?v=u7MSlnw7qcs it's the same here... no cd drivers. In a french forum one guy told me that the keyboard didn't need drivers... I went to the corsaire website ant there is no driver for k70