As far as graphics tablets go, there really only is one contender. Wacom has a long history of great tablets in all categories; from small doodling up to desktop filling CAD tablets. Recently they created a new generation of the Intuos tablets.
Previously I used the Graphire tablet, and that definitely fit its purpose, but I always wanted to have a slightly bigger tablet. When the Intuos 4 line came out, I knew it was time to update.