Thanks HS for your reply.
I'm new to all this. I'm presently using a CAD software, Bentley Microstation V8i, a vector-based program which is more powerful than Autocad, to produce my flat colour artwork. It has a few colour table options inc. Standard, Pantone Colour Bridge CMYK, and NCS. Does it make sense to use any of these to help me determine how my artwork will print? Would printing on my home HP 4 colour printer be the best bet? I need to do more reading.