Toolsmith (ISSA) RT: Request Tracker - Best Practical. Endpoint security solutions - Bit9. CERT Societe Generale - Publications. CERT Societe Generale provides easy to use operational incident best practices.
These cheat sheets are dedicated to incident handling and cover multiple fields in which a CERT team can be involved. One IRM exists for each security incident we're used to dealing with. These cheat sheets have been written in English and Russian, and translated into Spanish by Francisco Neira from the OAS.