It's near impossible to produce such effects with a polygon modeler Actually if you use a decent poly modeler you can easily do this type of model. I have seen some awesome organic models come out of nendo and if you bother to look at litst work you will see some awesome organics made in Carrara's VM. I have determined that pretty much any type of model can be made with any modeler type providing you are comfortable with it....So if you like splines you will probably love NURBS, but if like me, you like modeling in poly's, there are no worries...you just have to use a different approach then you would with a spline/nurbs modeler.