For the folks that want to try out CAD, look into OnShape.com
It’s a solid parametric modeler based in the cloud and there is a free version for non-commercial users. The only restriction for the free version is the number of projects you can have active at any given time.
It operates very similarly to SolidWorks, Inventor, Pro/E and Alibre/Geomagic Design.
If you prefer a CAD package you install locally, Geomagic Design is what I use at home. We use Inventor and Pro/E at my work, and moving into Geomagic was seamless because the interfaces and commands are pretty much identical in all three programs. A Geomagic seat is $2400 with $400 annual renewal which means you always have the latest version. Geomagic design is cheaper than the other guys because it’s just the modeling aspect. The other features more geared towards engineering like FEA, flow, etc. are separate packages instead of being bundled into a single more expensive seat.