Last year's Spy Video TRAKR introduced older tots to the world of espionage. Now tots can't get enough. In August, Playmobil will launch a Spy Camera Set ($85) with a truck-mounted camera that transmits images to a handheld remote control. The set is part of the company's Top Agents line of building sets and characters. Though it isn't necessarily for spying, Fisher Price will introduce the Hot Wheels Video Racer with car-mounted video cameras that transmit the vehicle's path back to its owner.