I'd strongly suggest you get a real Voodoo3 2000/3000 card as the Banshee is missing the 3D capabilities and thus Warp3D won't work with it. And unless you get a scandoubler working for it and have a switchbox (or device) to switch between gfx card and scandubler you still need 2 monitors.
Huh? IIRC the Banshee is the combined 2d/3d version of the Voodoo2 card. The Voodoo2 was a 3d-only addon card, and you needed a 2d gfx card in addition for normal 2d stuff (ie windows).
The Voodoo2 and Banshee would be from somewhere around 1998/1999, I think.
-Paul
