expecting my first child in 2 1/2 months. wife's lease is ending and deciding between an suv like the cayenne or ml350 vs the ol' minivan odyssey/sienna solution. would like people's thoughts regarding having a full size suv with a little one or two maybe in a year or two. tough with the car seats? rides too high? PITA without sliding doors? wife is 5' tall and less than a buck. thanks for your thoughts.