MacInTouch Home Page: "Panther Cache Cleaner 2.4.7 provides easy access to numerous Mac OS X maintenance and utility options through a graphical interface. This release has been updated for Mac OS X 10.3.8 and adds a screenshot helper and an option to remove unneeded language localizations. Panther Cache Cleaner is $8.95 for Mac OS X 10.1 and up."
I've avoided PCC since I removed it and seemed to resolve some serious stability issues. It used to install something deep in the OS.