First, I made a complete and bootable duplication of my PowerBook on a recently assembled 300 gigabyte external FireWire drive. In the past, I’ve used Carbon Copy Cloner for this task, but due in part to the fact that it hasn’t yet been updated for Tiger, I opted for Shirt Pocket’s elegantly simple SuperDuper! — I now happen to prefer it over Carbon Copy Cloner, anyway.
(Via Khoi’s great Subtraction blog, which kicks design ass: Thanks, Khoi!)