Mmmm... Well, I think being a pilot does turn into just another job after a while. Certainly it's not all "Magnum PI".
My advice is to start with your PPL, if you like that, (and have the money for the rest), go for the CPL/Instructor.
Try not to think it's all like Magnum PI/Airwolf/Documentarys on The Discovery Channel.
Take it one step at a time, and maybe try to get a ground based part-time aviation job while you are training (Operations staff, refueller etc). I guarantee your opinions/viewpoint/goals will change as you go along.
Oh, and it's going to cost you anywhere from £50,000 to £80,000.