DiskWarrior is the most highly decorated Mac disk repair utility ever. It repairs disks that no other program can repair. New hardware monitoring helps protect your data from drive malfunctions.
This list provides a quick overview of the landscape of open-source bibliographic software; both where is has been, but more importantly, where it may yet go.
At this point it is an expensive and questionable alternative to Camera Raw, a free extension to Photoshop, and Adobe's Bridge which can batch produce better quality images in arguably less time.