I went for the new Giant Defy Advanced 2. Carbon frame, 11 speed 105 and disc brakes. Reviews are superb and it's great value at £1,400. 13 week wait for a new ordered bike but luckily Don Skene in Cardiff were expecting one in the next week or 2. I expect it will stay in the back bedroom for a few weeks until the weather improves.
My trustee Roubaix that has seen me through the last 3 years will now be my winter/wet weather bike. A great choice to have.