Various different machines are available to make rendering easier. With Bryce, it's still going to be a slow, tedious process regardless of what kind of speedy, snappy, bleeding edge machine you have. Let's face it, if Maya is the cheetah of 3D Renderers, Bryce falls somewhere around the house cat range. At least, it's better than Poser's (3 legged house cat trapped under a rocker type ... :)