A friend trained as a carpenter and now does general sort of stuff - anything from fitting kitchens to floors or new doors etc. Sometimes for a building firm, sometimes freelance. I showed him some tech drawings I'd done on this Acorn using ProCad, and he was most impressed. And would like to start doing such things on his Mac - at the moment he just uses board and square where he needs drawings. He's quite new to computers and middle aged.
What would be a good prog to use on a Mac? Preferably not too taxing to do simple stuff.