MAYA IS FREE TO DOWNLOAD. As a Personal Learning Edition. In case some people didnt get that in this thread.
http://www.alias.com/eng/products-services/try_alias/index.shtml
THOUGH i have to stress there is a reason for this. MAYA IS VERY VERY hard to learn. its not like Bryce where u dont have to know anything to use it, but the more you know the better you are with it.
With maya, you have to learn your way around it, and god help you if you dont have a 4 button mouse at least. Maya is GREAT, extremely well liked in the 3D community and well written about in lots of tutorials and books.
If you want to learn how the "big boys" do 3D modeling, Maya is a good place to start. BUT if you want to have a more powerful 3D program than Bryce (which is a powerful LANDSCAPE 3d tool, though crappy primitives) youll need to look elsewhere for something cheap and easier to learn/use.
I can suggest lots of free ones, but nothing really is as good as something thats a few bucks.
Cimema 4D is 4 stars in my book, its very very powerful but you can do alot by knowing very little.
Carrara is ok, not great but I think its metaball is kinda neat
Lightwave, dont try this maya is better IMO and I dont read much on Lightwave
Infini-D, Classic and OS9 only, awesome precursor to Carrara, very simple but can do alot.
Also, its obvious but not to some, if you want to learn a 3D program, you have to use it alot. I didnt ever read a book on Bryce and I still dont understand its animation stuff or some of its intricate settings, but a book can always fix that. When it comes to Maya, do a hard search on some books and read opinions on their helpfulness and how they are written. Pick up a copy of a good book that you think will best help you. No one can teach you 3D, only how to use it.