TrueSpace, I think version 5.0, I'm up to 6 now. Each new version is a chore because it takes getting used to all over again. I prefer to use that for 3D work because it's the one I know best. I never learned 3DS, I know Lightwave but there's not as much call for that now as there use to be. Most people want 3DS or Maya and since I don't know 3DS I tried learning Maya with the PLE version but, it just messes with my head, I go back to TrueSpace and then I'm lost again. <LOL>