Cover Flow and Quick Look:
Using Quick Look in Snow Leopard, you can view a drawing without even opening it. The Quick Look view is not a jaggy little icon, it is a clear PDF representation of the first page of your drawing. This gives you a sneak peek of the drawing without the full double click, load and open. This works with Cover Flow, the normal Open panel, or Column Finder browser. The quick look provides key stats such as number of layers, author and the other personalized document specifics.