DaisyDisk is a fantastic new visualization tool for your hard disk. It presents its findings in a marvellous (and animated!) daisy-wheel layout, and lets you drill down into subfolders to see what is taking up space. It scanned my entire 120GB (54GB used) disk in about 30 seconds, producing the first graph you see above. You can then move around, clicking on sections to zoom straight into them, pointing at sections to make their information appear in the pane to the right; the second image above shows the guts of my TeXLive installation, the largest thing in my /usr folder.
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.
All very neat— so go & buy it now, your computer will be beatified by its very presence.
