For information on the indivision go here.

I would imagine that a indivision and a mediator would work well together. As a vodoo card would mean you can use rtg graphics then any game that uses rtg graphics will be displayed via the Voodoo card as will workbench. You could try Modepro to promote games to use rtg displays but most the time it doesn't work. Any game that uses a native amiga screen cannot be displayed via the graphics card. However you can use a TVcard to display the games on a standard monitor but apparently the PIP mode on the TVcard will not be the highest (haven't got a clue what this means but thats what was said on another Amiga board.