3D Modeling Software

I have spent quite a bit of time researching different 3D modeling programs that I have not yet had an opportunity to use. Although I have prior experience with AutoCAD, Maya, FormZ, Bonzai, and Revit, I have not had the chance to use several programs that interest me. One such program is SketchUp. It is very common and fairly basic, yet I have not had a chance to work with it. I also have an interest in learning how to model in Rhino. I am still looking for one more piece of software... perhaps Catia... but we will see.