That is very true, every time you look at a piece of art, movie, or listen to music, speach read books, view landscape, ride in a car, airplane etc.... You are partaking in the vision of another person. As humans our imaginations are as boundless as our abilities. (some will disagree) Nontheless if you think you will not be able to do it, you won't but if you do like me, I KNOW I CAN DO IT, you will. Most artist here work very hard and some not-so hard to put out great stuff and on the web. There are a variety of tools used to ease the production of our visions. I personally use may use up to seven different apps to finish one scene that another person could do with a single app. All I am saying is find the tools that you are comfortable with and learn them. Don't get Carrara or Lightwave just because someone else uses it. Get it, try it on for size. Is it the right interface for you, does it meet your needs? Then ask the other questions after you decide on solutions. The question I ask myself everytime I sit down to begin work is "What do I see." Then I break it down into detail. ie: I see a car, I see tires on the car, I see threads in the tires, I see goodyear on the side of the tire. Breaking down your vision is the path to detail and that is something that I think we all agree with.