So, after updating my PowerBook G4 (12″ DVI) everything seemed to be okay until I realized that the disk was being accessed quite heavily (based on sound alone), and that the computer seemed a bit slow. I though it was due to some DB update, or something along those lines, and decided to wait it out. The next day it was still at it and the usability had worsened. I decided to reboot to see if that would resolve the issue, which it did. After rebooting, I checked the Console.app to see what was being logged. As it turns out, I had run out of memory and was thrashing.
May 26 19:51:42: — last message repeated 4 times —
May 26 19:51:45 rafs-powerbook-g4-12 kernel[0]: (default pager): [KERNEL]: no space in available paging segments
May 26 19:51:54: — last message repeated 1 time —
May 26 19:51:54 rafs-powerbook-g4-12 kernel[0]: proc: table is full
Let that be a lesson, reboot early, reboot often.
–Raf