Depending if you want copy a model from a paper pasted on your tablett
If not a simple new Bamboo Wacom or Volito 2 is suffisent if you are not a pro :)
Works fine with moi :)
http://crunchgear.com/2007/05/16/wacoms-bamboo-graphics-tablet-for-the-masses/
http://www.my-volito.com/volito/intro.asp?lang=uk