The following web site may be useful in moving forward with the standard:
ISO 17799 RESOURCES
ISO 27000 Download
Standards Direct vending site
A wide range of solutions, including Norton.
Offer the AVG anti-virus solution, including the free edition.
Probably the most well know firewall: ZoneAlarm
The Open Source Network Intrusion Detection System
Substantial security resource and library
The CERTŪ Coordination Center (CERT/CC), center of Internet security expertise