Well... you could always go with corn snakes. 80-85ºF on the warm end, and don't let the cool end go below 70ºF or so. Household humidity's fine unless it's extremely high or extremely low (40-50% is generally good; if there are problems shedding, add a little more humidity). I've had mine for two years, and she rarely misses a meal, has never regurgitated, never gotten sick, and weighs right around 270-300 grams. If you do plan to breed, 300 grams is the minimum weight for a female.