oh, and if you want to have two snakes, just go to Target and get a cheap tub, get an under the tank heater, 2 hides, and you are in business. I already get huge bags of substrate so i have for a while, its not that much more to put some in for another snake. I use an old dog water bowl for the snake's water bowl.
Its really not that expensive, and if you think about the vet bills, medicines, upkeep, etc. of a sick snake, no less 2 sick snakes, it it totally worth it.
good luck!