Hi Esther! Welcome to the wonderful world of Vue-ing! :) Anything that exports what Vue will import is a worthy modeler, so just pick whichever you feel most comfortable working with. Vue 2 will import DXF, OBJ and LWO (I think). Possibly some other formats. (You can check by using Object > Import and just peek at what file formats it will accept.) Nearly every modeling program will export DXF, so you can always rely on that one. (There are some older DXF versions that Vue won't import, but if you're dealing with newer items, you probably won't run into a problem there.) A couple of my favorites: Ray Dream Studio (now defunct) and PlantStudio. I also do quite a bit of modeling in Vue itself, using the primitive objects. Actually quite a bit can be made that way! :)