Here's my 2 cents worth, price is a factor when choosing a cad/cam package. Cut2D is an entry level software that is very powerful tool for $150.00 USD. You can import 3 dimensional models into it, except they have to be imported from VectorArt 3D Machinist, Aspire, PhotoVcarve, (only Vectrics software). Another GOOD entry level is ArtCAM Express. Very powerful tool for 2D, 2.5D, and 3D work. Can import many formats, I like to use stl file they are a generic 3d file commonly used. If your budget lets you purchase more advanced software there is BobCad, VisualMill, Aspire, and many more. The software I use is ArtCAM, PhotoVcarve, Cut2D, VisualMILL, VisualART, and Alibre cad. Just to add all these have their uses. Many decisions when starting out cnc routing. Have fun and Happy Cutting.