And of course, this being a Leopard app, it has QuickLook support (point at something and press space), and it has some wonderful animations— as you drill down, the item you’ve selected animates into place, with everything growing and moving inwards one level. A really beautiful and useful bit of CoreAnimation loveliness.
Running out of space on your Mac? DaisyDisk is a nice looking tool to help you clean it up.
