i wouldn't rush into buying one right away. while they are rather easy to take care of, it's best to know all you can before you actually bring one home.
i (as well as most others) suggest picking up the
corn snake manual by kathy love. you can get it from her website (
www.cornutopia.com), amazon.com, or through most local pet stores. that book has everything you would ever need to know (and more!!) about corn snake care.
welcome to the forums!