I don't own either of these types of snakes but as everyone else said, they get big, and the bumese will get REAL big. Zoo's have plenty, and a pet store probably won't take a large snake when they have tons of "cute" small ones they can sell for big bucks. And an 18 ft enclosure is going to be good for the bumese when it's full grown (maybe). Power feeding is bad....lets see him eat 5 large hamburgers every hour, every day. here is a beginner snake.......corn, BP (if it's a good captive breed/born one), and others that I can't remember....not something that gets twice as long as you, weighs just as much as you, could have you for a snack, and it's bathroom "waste" is probably HUGE......
Neptune, Zion, Enigma,