AutoCad is not for the faint of heart. I would select a more "user friendly" program for my first time out.
There are some very powerful ones out there that will do what you want, Anthony, and they won't cost you as much as AutoCad. AutoCad is a broad-based program, with add-ons for specific types of drawings.
The type of program you need is project specific and therefore will not cost as much and still be as powerful as you need.