So after 2/3 years of putting up with an unsightly '12' in my system profiler under memory, I finally got some cheap DDR2 DIMMs to bring me on up to 16GB. For some reason when I first put them in it only detected 2 of 4. So swapping 4 x 1GB for 2 x 2GB was naturally not much of an upgrade. I reseated them a few times to no joy. But after not using the system for a few weeks I was pleasantly surprised to see the whole lot working all of a sudden. PRAM? Ghosts? Whatever, they're all working consistently now. The magnum opus of the PPC lineup, now with 16GB Ram and an nVidia Quadro FX 4500. I reckon the only thing to add now is an SSD, but I'm content with an old 500GB HDD for now. Having been away from it for a while, I ended up spending half the day doing actual work on it. I just love using this machine.