Truth be told, the necessity of the screensaver is behind us. Since CRT monitors have gone the way of the 12-inch Powerbook, most people don't need to worry about screen burn. Yet we still love screensavers. Why? Some of them do useful things. Others are pure eye-candy. Your friends couldn't care less about seeing TPS reports on your new Cinema Display, but fire up one of these cool screensavers and watch as everyone becomes mesmerized.