When ever I need to find out about a product, I go to google and type for instance " autocad for MAC sucks " This always trolls out the worst reviews and the defenders of the product. Hence the link above.
Ever used Bobcad? My guys swear by it, simple, logical and about 25% the cost of Autocad. Two to three clicks to get to where you want to go, compared to 5 or six with Auto. And the cleanest tool paths you ever saw, close to hand polished. My 2 cents... http://www.bobcad.com/