Hi everyone. I recently acquired a Powermac G4 MDD with dual 1.25ghz cpus. I've been maxing it out with parts I have available, like the RAM and hard drive. But since this is my first Mac desktop, and I know that you can't slot in any gpu, I'm a little unsure about the graphics. It currently has a Radeon 9000 pro, and I wanted to upgrade it to something better like a Radeon 9800 pro, which is the best graphics card you can put in this machine (correct me if I'm wrong about that). Anyways, I've noticed that mac editions of gpus run at much higher prices on eBay. Do I need a mac edition of the card? And is the 9800 pro the best I can get, or is there something else? Thanks.