3rd party video card and MacOS X



I've got a beige G3 MT, and I was thinking of putting a second video card in it (either a radeon if they ever come out with a pci version, or a vooodoo5). I've also got the MacOSX public beta, and I was wondering if anybody had any experience running X without using the onboard video.

I don't want to run it with two monitors, because that caused some strange rendering problems when I had a voodoo3 installed. For example, when I would search for something in sherlock, the results pane wouldn't refresh properly so that it all became one garbled mess when I scrolled.

Thanks for your help,