Get the New Ultegra 10. Shimano shifters break and once they do, you can't repair them. Don't take a chance on the used Dura Ace unless you are absolutely sure of the milage and you've ridden it yourself to make sure the shifters feel fine. And that two year warrantee you get on your new Ultegra shifters is totally worth it. you never know when the shifter is going to fail. I've sent back 3 shimano shifters for warrantee this summer and we are a low volume shop.