Rhino, I have spent tons of money on software and Rhino rocks. I have been using it for 5 plus years and it just works flawlessly. The cost of entry is learning the software, but for my money rhino has it going. Hundreds of drawing tools, plug ins, import and export capability, tens of thousands of users word wide and Bob and Sandy McNeel are just good people. (rhino's developer).
Warthog CNC router
Legacy CNC 5 axis router with ATC and lathe
3d Printer
Proliner digital measurer
Rhino design software
Rhino Cam
Vectric
Featurecam
Artcam
Delcam designer
Full analog woodworking shop