I see a lot of diagrams for wiring and panel layouts and as I'm planning what I want to build I think it would be so much easier to move things around on screen rather than re-draw it on paper. I don't really have need for a CAD product otherwise, but is there a free electrical/panel component/etc CAD or drawing program that anyone could recommend before I start downloading random/worthless crud to my PC in a hunt for something? Bonus points if it has built in "objects" for contactors, switches, etc. but doesn't need to be anything super fancy. Thank you!