Here is an interesting article about a Windows power user giving SUSE Linux Enterprise Desktop 10 a trial. While the title of the article itself is a little negative, I think she gives it a pretty fair review.
"Conventional wisdom would have one believe that it is insane to resist this, the mightiest of empires, but what history really shows is that today's empire is tomorrow's ashes; that nothing lasts forever, and that to not resist is to aquiesce in your own oppression. The greatest form of sanity that anyone can exercise is to resist that force that is trying to repress, oppress, and fight down the human spirit." Mumia Abu Jamal (African American activist on death row)