You can spin articles easily with tools like spinrewriter 3.0. First you need to write a unique article and then you put it in the online article spinner.
After you put the content in de article rewriter you can check if it is unique by clicking the copyscraper button. If it passed then your article is ready to post.
The article is fully spun and the spintax is really great. You can spin the article a thousand times and it will be unique every time.
For a video demonstration of spin rewriter 3.0 go to: http://www.youtube.com/watch?v=Mi7PlJs1AaY or http://www.online-marketing-business.com/spinrewriter/