Ride every bike you can get your hands on, including the Trek and Specialized. Both those bikes were the most comfortable (least amount of road chatter) that I rode; the Trek so much so that I, personally, hated it (couldn't feel the road). If you have to drive somewhere else to get one because you don't like the local dealers so be it.

Also take a look at Ti and/or Steel, both off the shelf, custom, and semi-custom. You could have a frame built and move the components off your Cervelo (or not and just get new ones). Seven and Independent Fabrication both make reasonable, custom Ti and steel frames, as well as many local artisan builders. (and then there is of course Lynesky Ti for production frames)