Thanks YellowLabLover

I would definitely recommend at least a month or two of research. Have you gone to the kingsnake forums like I recommended? They can give you the pros and cons of tortoises and walk you through a day/week/month/year in the life of a tortoise owner.

Also, what kind of turtle is this "Common water turtle" you mention? I know of no aquatic turtles that stay palm sized, and the only inexpensive aquatic turtles I see are Red-Eared Sliders.

Please please PLEASE wait awhile and do a lot of homework before you decide to do this.