Triggers on node creation of certain content-type It is a question that always gets answered by "use rules module." Unfortunately, this site depends heavily on a few actions and triggers already, and a migration is not in order. 

Are there trigger-addons, tricks or code to make a trigger on creation of a certain node-type only?
Rules and core triggers/actions can co-exist. If it can easily be done in Rules, then why not use both. You then won't have to migrate.