Graphics card - I would suggest a mid-level Nvidia Quadro Graphics card. AMD Fire Pro cards are improving, but I believe the Quadro's worked better in SW2010 era.
Not sure about the tablet/board - I use the mouse and a 3D Connexion 3D Controller.
I use a Wacom tablet / mouse in my right hand and a 3dConnexion mouse for the left. Any Wacom tablet is good I think but the best are the Cintiq of course.