I have been away from the forum for awhile and you may have received all the info you need but here is a little more. I use a G3 300mhz at home and a G4 450mhz at work, both towers. As far as work in Carrara there is a marginal difference between the two but render times are noticeably faster on the G4. I did have slow down problems with large files on my G3 at home untill I stuffed it full of ram and let Carrara use all it could besides the operating system. Nothing beats lots of ram. By the way, very cool image. memaci