Backing up my Mac’s 550 gigabytes of files (documents, movies, music, photos, files, applications) used to take 20-minutes using SuperDuper!
SuperDuper! (2.6.2) is up to 2x faster, adds great new features like Backup on Connect, Eject after Copy, Sparse Bundle support, and still lets you store a bootable backup alongside Time Machine backups, copy Time Machine backups to other drives, run scheduled copies on demand.
Version 2.6.2 is Snow Leopard ready, has a number of new features, and the same incremental backup is barely 10 minutes. Twice as fast. No additional cost.