Yes, you can hacksaw the edge connector on the G5 cards to make them fit as the early G5's use an AGP Pro slot instead of the AGP 4x in the Digital Audio, but I didn't think you wanted to do that. Flashed cards aren't that bad. I have a flashed Radeon 9700 in my Digital Audio and it works great. There are several ebay sellers who specialize in flashed video cards. If you are implying that you might want the nVidia 5500 I mentioned above, then that would be a flashed card. nVidia never officially supported the Mac that far back except with weak sauce cards like the GeForce2MX. As I said, if you want an officially supported card not requiring any mods, then the 9800 Pro Mac Edition is as good as it gets. Oh, Macs also have a problem with 8x AGP cards because Apple used two pins in the AGP slot for something else before the 8x standard was announced. You have to mask two pins with tape to get them to run at 4x. You can google the instructions easily.