When my Hard Disk was breathing its last breath (see: iFinally fixed my iBook) I looked for some good repair and diagnostic tools. I struggled to find something worthwhile, and thought that I could at least share something that I found just recently.
DasBoot is repair software encapsulated in a disk image you can copy onto your iPod or USB stick. For more info and download checkout SubRosaSoft’s DasBoot website.
(Via MacApper)