I've said it time and time again - Phase 5 should have made a graphics card for A1200 desktop owners and not bothered with the PowerPC boards with 603e.
A nice '060 + 3D GPU would have been much more prefferable to a PPC + BVision combo (and more physically possible for desktop!).
I think this is now being attempted with the PowerVixxen accelerator/GFX card.
MorphOS does indeed sound a very tempting prospect, especially since it has TurboPrint built in and PPC optimised operation.