Truespace ... yes and yes :)

I sometimes scale by a factor of 20 for convenience, but its no big deal. It works now there is the free LUUV plugin for importing OBJ's. I started with a free version 2, purchased 4.3 and now have 6.6 Getting an early version is a good way in. The most significant jump for me was version 5 when they added more editing tools and subdivision of surfaces.

Go for it :))