Due to differences in the system bus, software and other architecture, a 1 GHz Pentium would be about 1.6 - 2 times as fast as a 300 MHz G3, in case anybody has the two available for a validated side-by-side comparison. I think Wolf359 has done some good work here. It indicates that a system like they used in "Monsters, Inc." (key strands) is the way to go with Poser 5 in order to get realistic hair with big savings in replicated geometry. Assuming the people who did "Monsters" don't have a copyright lock on the process.