Now that your convinced to do something, here is additional information to help you get there. Remember that having validated point of sale software and hardware is not enough to become PCI compliant!
An overview of the PCI Standards.
The ten myths about the Payment Card Industry Data Security Standard (PCI-DSS).
A glossary of PCI terms, abbreviations and acronyms.
The five step PCI compliance guide.
http://www.pcicomplianceguide.org/merchants-20071022-gaining-pci-compliance.php
The Payment Card Industry Data Security Standard from the PCI Security Standards Council
This is the holy grail of what merchants need to do and what the fuss is all about -- not for the weak of heart. This 72 page document explains each of the 12 steps of the PCI DSS Standard in detail for the version 1.2 standard published in October of 2008.
