NIOSH has recently released the following Fire Fighter Fatality Investigation Reports:

F2008-15 Jun 22, 2007
Engineer suffers fatal heart attack at scene of residential fire – Michigan
http://www.cdc.gov/niosh/fire/reports/face200815.html

F2008-13 Feb 19, 2007
Fire fighter-emergency medical technician suffers sudden cardiac death during overhaul - New York
http://www.cdc.gov/niosh/fire/reports/face200813.html

Take a look through the reports and see if there area any lessons learned and improvements that you and your organization can relate to that may make a difference.