I have two PC (I believe both are built by ATI) 9800 pro video cards that I've flashed to work in a Mac. These are flashed with the Strangedogs 130s ROM file. DVI and VGA seem to work fine and Core Image is supported. DO NOT try to update these cards with the ATI ROM updater because the flash ROM chips are 64k and the updater requires 128k flash ROM chips.
I only need one, so I thought I'd sell my spare here.
One card has an Arctic Cooler Silencer cooler on it. This cooler takes up the adjacent PCI slot. Also, the retention bracket on the back interferes with heatsinks on dual processor Sawtooth systems (I'm not sure about any of the other models). So don't buy this if you need the PCI slot or have a dual CPU Sawtooth.
The other has the stock heatsink fan unit.
I can tape the cards for use in 4x AGP systems if wanted.
Either one $75 shipped. (US only)
My heatware is under BigBadBiologist.
[ HEATWARE.com ]