There are trial versions of XSI 6 FND, LW9.0 and Modo202.
(My pick for the best three Modelling/Rendering applications)
Also remember that TG2 can actually import/export
.lwo and export basic .lws support.
This means that LW/C4D/Modo will all natively
open the scene that TG2 exports.
(not just the objects)
And considering the Rendersize limit on the
demo, and painful TG2 rendertimes...
FPrime and LW or Modo202 can render
exported GI scenes in a fraction of the time it currently
takes TG2.
Modo and LW and XSI all have 30 day trials...
Blender supports .lwo and .obj, but isn't the best Modeler.