Tortioses are a BIG and EXPENSIVE commitment. Odds are a tortoise will outlive you, so they are DEFINITElY not a good impulse pet, especialyy if you are the kind of person for whom the "novelty" of having a pet wears off a few months after you get it.

If you are serious about getting a tortoise please stop by forum.kingsnake.com and look at their tortiose forum. There are a lot of very experienced people there. Ask one of them to walk you through a week in the life of a tortoise owner. Ask a lot of questions before you make a decision.