when working with 3D, a good graphical card is the max...
I would definitely buy a nVidia High-end workstation card for the powermac G5.. This would make it the ultimate workstation!
it is this kind of stuff that held pixar back from buying Mac's for 3D.. they have a lot of them for Photoshop and stuff,.. but for Modeling, AND ANIMATING! you need a high-end grafix card. (at least at their level) and until now,.. there are no such cards..
Because pixar showed such an enthousiasm about the new G5's,.. I guess that nVidia or/and ATI are converting their pro-cards to the Mac...
I will wait until that card is available before buying a My new Mac...
Ge4-ce