First thank-you everybody for your responses. My main aim with the plane is not to fly commercial! Sounds odd, but I like to fly, but hate flying in a commercial plane. I like to drive, and in my 16 years of marriage I think I can count on my two hands how often my wife has driving while I sat in the passenger seat. This means I want to do long haul flights in the order of 1000+ nm flights. Regarding my Northern Atlantic crossing I am actually planing on hiring a ferry pilot to be my "co-pilot". At least for the beginning because I understand doing this on my own would be a bit dicey. Here are the priorities: 1) Fuel efficiency (I looked at a Piper that sucked back 40 GPH and thinking, yeah I see why they want to sell that plane).
2) Cost like I mentioned, general cost of ownership.
3) Range has to be at least 900 NM, with the possibility of adding an extender (eg Mooney range extenders)
4) Needs to be able to fly at least 17,000 ft as I live right beside the Alps and there is no way I want to navigate through the mountains. Too many people crash into the alps because their plane could not fly over them. It's awesome on a clear day flying through the valleys, but there are also "awesome" wind channels. I also want to be able to fly over windy conditions that happen all to regularly in Europe.
5) Need some amount of haulage for my wife, our two dogs, and myself. When I put all of those things together it all boils down to getting a Mooney since nobody else has a plane that is competitive, at least that is the impression I get. And I am researching all of the tips mentioned...