Hi Katoh
I think I will go for Cut2D since it has the simulating function to let me see how things are going to be cut. This will prevent some mishaps I reckon. I will need of course to learn the G-codes - so I will be able to correct any mistakes.
My router is a home built hobbyCNC one - with a regular Dremel tool to do the cutting - I guess this will be a good start to learn - once I will get the basics - I think I will go forward to a better/bigger machine.
Mistakes don't bother me - I learn a lot from them. (usually these are burnt into my long term memory :-)
Thanks again for your wisdom.
Isaac