It is funny; you would think nurbs would be great for mechanical models, because you can't create a perfect sphere with polygons and almost nothing organic is perfectly shaped! I, my self, am a poly modeler! I like nurbs in maya but to me they just can't offer the level of detail when it comes to certain modeling. In my opinion, nurbs are much faster at modeling organics, but IMO when it comes to the detail they lose out to polygons. Which is another reason that they have made such a strong come back. A few years ago polys almost went extinct. LOL...To some extent the thing that has helped to bring them back is sub division surfaces, mirai is king of that domain, but it appears izware may not ever come out of the rut they seem to be in. Polys give you -again in my opinion- more precise control over every inch of a model but arguments can be made for both. Here is a few links to some of the best poly modeling in the world and a good mentor of mine. Also check out my friend Martin K's videos at inside cg in the modeling forum. They will give you some insight into poly modeling in Mirai xsi2.0 has added a ton of tools to its poly modeler, an area of maya that is hurting and is propelling xsi leaps ahead of maya at the moment. Probably a large factor contributing to the free learning addition. http://cube.phlatt.net/home/spiraloid/ http://maxrovat.sns.hu/subdiv/ http://membres.tripod.fr/rimasson/3d/3d.html Also for a nurbs modeler check out Steven Stahlberg's older stuff( the new stuff is polys) but he did some good work with his older stuff too and they were nurbs. www.optidigit.com As a side note, I'm just a guy that reads alot and talks alot so any info I give is based off of what friends in the buisness are using and personal experience...my opinions mean nothing. In reality nothing beats doing the research and trying them out, because everyone will tell you one is better than the other so use google and use it wisely. ....BTW cute model!