Those are some excellent points, Gorgonops. Thanks for pointing it out.

There is one point I do not agree with and thats is where 20megs would land if the databus bus were to be expanded. It would not do down past $009FFFF, but only widen the bus, still being with 10megs of memory barrier but 20megs at 32 bits and not 10 megs at 16bits. Thus it would not land into video memory if added by widening the bus.

But everything else is every informative. Thanks for your input.