I own both CC3 and CD3. I must say that I nerly never use CC3 for overland mapping cause I feel I get more creative freedom in Photohop. But when it comes to creating cities I think CD3 is a blast. In CD3 you get loads of more texture to play around with. You also get some good tools to create houses by your design. You also get a tool that you can use to fill the streets with random houses in a very easy way. You can see one of my towns here http://www.cartographersguild.com/sh...p?10055-Alvhem. So I'm very satisfied with CD3 and I think it gives you more value for your money then CC3.