Multiple Graphics Cards Help


I've got a dual 1ghz machine that has a geForce4 card in the AGP slot. The card has dual output and I am using both outputs for my dual monitor setup. I'd like to have a third monitor, but all the remaining slots are PCI. The best card (read: has a DVI connection) that I can find that is PCI is the RADEON 7000 Mac Edition. This seems to be out of stock in most places and I'm nervous about ordering from small-time shops. Are there any other feasible solutions to my need for more than 1 graphics card in this machine?

Ideally: >=32Mb, DVI output, PCI