Post Header

I installed Header and Footer plugin and I must say it works great, but I am looking for a plugin that will automatically add a header to the post plus allow me to customize it on the post screen. For every category I have I want about 5 sentences to say almost the same thing, but with different links to different department stores, but I want to be able to add a catch phrase above those sentences. Does anyone know of a simple plugin that will allow me to do this from the post screen??