For anyone after a free 3D modelling app, now is the time to get it. TrueSpace 7.6 from Caligari was released as a free product sometime ago. There is some link to Microsoft (but I'm not sure what exactly) and they are reducing their support. This could see TrueSpace vanish into the ether.

So, you can download TrueSpace and a bunch of tutorial videos etc. for free, but I suggest you do it fast as the site could be affected as early as Friday 22nd May.

Thanks to Savage for the information.