I've had this one for a few months now - very happy with it. The resolution is .2mm though (actually .1984mm) and I think you are looking at pretty heavy cash for ACCURATE .1mm resolution. Lots claim it, its hard to do.

I have modified mine to have a heated bed and have come up with some cool things to get parts that are straight.

I use OpenSCAD for design (its free) - but its another programming language to learn. It took a while, but I'm getting better at it.

Andy