Maximus,
First of all, I would like to second what David and Hunter have said. Jim has a good amount of insight and expresses it quite well. That doesn't mean that it isn't hard to understand. I doubt that Jim would say that he is without desires, or that he doesn't act on them. But I think he does see through them, past them, sees them for what they really are.
But, boy, you really know how to ask the hard questions. I also struggle with this desire issue. Without it, what would ever happen, yes? If this physical world was created, (and you may not think it was), doesn't that imply a "desire" on the Creator's part? If that is the case desire can't be classified as being totally "bad".
If you get involved in some form of spiritual practice I think you will find that your desires become less important to you. Less a measure of who you really are. But you will probably still have some form of desire, they will come and go, change, just like the weather. But that's ok, as long as you handle them in an ethical manner. Sometimes the world needs the rain, sometimes it needs sunshine.