Trying to enable Quartz Extreme on my setup. Here are my specs:

Phenom 9550
Gigabyte GA-MA78GM-S2HP
4GB RAM
Geforce 7600GT

Got OS X running using LawlessPPC 10.5.4. I went through a rigmarole to get the Geforce extensions running - not sure if there was an easier way - but I can change my screen resolution. If it helps, I used NVinject 0.2.1.

Again, would appreciate any suggestions on how to enable Quartz Extreme as I would like to install Final Cut.