I would seriously consider renting dock space, or a mooring. If you factor in the time you spend hauling the boat, extra gas, etc. every weekend. Paying $10 or so a foot for dock space a month makes more sense. Especially, with $3 a gallon gas.
But if you want to go with an SUV, you have the Boxster for luxury and fun, go buy a truck that was made to haul stuff around, that you can beat up, instead of looking like a fool towing a big boat about behind a luxury SUV. Luxury SUV's were made to look cool, not be used practically as often as you mention (every weekend).
Just my Opinion!
