When we first saw the BW1 golf cart hovercraft, it's fair to say we were excited. But now -- if you're the kind with a burdensome disposable income -- you can buy one for yourself. If you're willing to drop the requisite $58,000, you can cruise the fairway (not to mention the rough and water obstacles) in a BW1 of your very own. It comes complete with a 65-hp twin-cylinder Hirth engine and a streamlined, sound minimizing fan that promises enough power to reach 45 mph and ferry two golfers plus caddies between holes. So, it may not be for those