On my Voodoo/Mediator setup (A1200T) I use an LCD TV so I use Scart input for Native screens, this setup works for me but can be an annoyance with apps that change screens a lot, you can use a promotion tool like 'NewMode' but a lot of stuff like games needs the native output.
What I do like about the Voodoo 3 is Warp3D which is totally awesome for games like Quake 2 in MiniGL
Steve.