My poor little 40GB hard drive in my laptop was getting way too full. Because Apple didn’t go and release new Powerbooks, I was forced to take drastic measures and upgrade the internal drive. So, I bought at 80GB drive and an external FireWire case, transferred over all the files to the new drive, swapped it out, was forced to re-install OS X, and then it started right up.
There’s some weirdness with the settings, as it transferred over my user settings, but the system settings got reset to default when the OS was reinstalled. Also, a few aliases stopped working… but for the most part, everything is running smoothly. And the new drive is even a bit quieter… I wonder if the access speed is any higher… hmm…