Interesting that several people model on the MAC then render on the PC. That's not an option for me, as I use Rhino and there is no MAC version, nor do they intend to write one, and I have to keep my skills current on Rhino. That said, I very rarely have a crash on my PC, especially after I added the extra 2GB of ram, actually no crashes since then - about 5 months now (VUEPRO). BTW I use ATI 9800 and NVidia Quadro4 580 XGL both with 128 Mb RAM (I've two machines), the older one with the ATI has less RAM but almost never has crashed - in both cases openGL is turned off as using it seemed to assure a crash/lockup. I'm not enough of a wirehead to network my machines - tried it and that wasted a weekend, I'd rather make images or have a tooth pulled - so I have to have a single box solution.