Update: It really does go without saying, the FX-CG50 is a beast of a calculator. But my trusty FX-991EX is still good for a lot of things. They are both good calculators. :
Casio FX-CG50-S-UH Calculatrice Graphique Convertisseur : Amazon.fr: Fournitures de bureau
Casio fx-CG50 PRIZM calculator review - The Gadgeteer