the catch? oh, thanks for putting it in a -a href- thing, much easier now...i just downloaded it, its fun to use. I think im starting to like it a lot better than bryce 5.0 even though this free thing is version 3.something or other like that. You can even deform objects! Fun fun, doesnt limit you to just shapes.
http://forms.caligari.com/forms/ts3all_free.html
Caligari are offering their trueSpace version3.2 - free. Normally $795. It is a 23MB download.
Tutorials available here http://www.caligari.com/Help/Tutorials/tS5Tutorials.asp?Cate=HTutorials