I haven't ruled out a Cayman either. I really want to jump up to the 3.4 whether it be in a Boxster S or the Cayman. I kind of dig the roadster thing since I sold my motorcycle two years ago, it's as close as I can get!
I know how you feel. I still have a street bike, but actually feel more "open" to the surroundings in the Boxster, after I don all my riding gear and helmet.