Corel is used in our shop to draw artistic parts for our routing, laser cutting & waterjet machinery.... so yes, Corel is perfect for everything you want to do.
Corel is cheap, easy to use, easy to learn and very, very effective. Being able to draw huge parts at 1:1 scale gives it the edge over rival software like Adobe illustrator.
The best older version of Corel is v12... this is the version I would recommend.
CorelTrace is a useful tool which you get for no extra cost.... you might use it, you might not. If you need to translate a Bitmap image into a cut ready vector file you'll kick yourself for not having it.
DXF is a foul, horrific file extension which we avoid at all costs.... AI & EPS are all we will use for our machines and Corel works like a champ with these file formats. It's a common misconception that Corel has bad DXF handling... it doesn't. If you draw the same part in Autocad and export it using their export filter you get the same cr@ppy results.... the DXF file extension is pi$$poor and Corel simply recreates it in the manner AutoDesk chose to write their stupid file format.