@caliban_6
You'll still need a scandoubler (or a monitor that will sync to 15Khz). The voodoo card will only work as a sort of "bypass" to the aga modes. Any software you run, that cannot be screen promoted, will still have to be displayed through the tv out.
Theres a clever trick you can do with regards to the mediator and a TV Card. If you plug the output directly into your tv card you can view it in a window on workbench.
Hops this helps.
LeeM :-)