I gotta give good reviews for Rhino. It makes construction so much easier than with Raydream. I'll be honest, when I started modelling I thought Raydream was great, but when I fiddled with Rhino, I realized that creating the same things with RD would be so much slower. However, RD is better for predictability, you get better detailing since you are manipulating the objects directly rather than having the program calculate the details like you do with Rhino. Also, you can get carried away in Rhino, building objects that take hours to render (it converts to Polygons before rendering which can take it forever with really complex objects). I will give RD this, and it's why I still use it: The rendering is quick and beautiful, the range of effects is staggering, and last but not least, Rhino's lights offer very (and I do mean VERY) little property control. My advice is build it with Rhino and do the finishing touches and rendering in Raydream. -Happy modelling!