Channing wanted a planet. Had they sold him a pup? Ex-vector Commander Jim Channing strode purposefully to the reception desk of Planet Enterprises, Inc. "I want," he told the well-built blonde who was making an interested survey of his lean features, "to buy a planet." "Yes, sir." Her interest evaporated. She took a card from a filing cabinet and handed it to him. "If you will just fill this out." It was a simple questionnaire—type, location, size—and Channing's stylo moved rapidly over it. He