Here's a more-or-less complete and brand new Dura Ace 7900 groupset. I decided to stick with 10-speed for compatibility reasons. As this story is presented retroactively, I can say that I'm amazed with DA. STI's are so light and precise, especially on up-shifts, brakes are amazing and the carbon pedals make for noticeably easier spinning! I prefer Ultegra's front derailleur action over DA's though.