I can second Alibre as a decent CAD package. I've used quite a few of them (SolidWorks, Autocad, NX, Catia, ProE, Alibre), and Alibre does pretty well compared

I can second Alibre as a decent CAD package. I've used quite a few of them (SolidWorks, Autocad, NX, Catia, ProE, Alibre), and Alibre does pretty well compared to some of the bigger names.