I've been exploring the use of a cnc machine in my woodshop and need advice. I make boxes, primarily jewelry and gun cases. I would like to engrave logos or outlines of firearms or do 3D carvings of subjects on my box lids and be able to do custom signs. I've been looking at Shopbots but don't see them in any of your discussions. Most machines would seem to be an overkill for my use but wonder if it might also be use for dovetailing? Are there entry level machines that don't cost a fortune?