Magazine Design Templates

what is the best software that i can use to create pages for magazines or books with designs and backgrounds?
i want to create a layout or template so that in other pages of the book i can just change the contents not the designs anymore. I used photoshop but i dnt think that evry pages in the book will look right if the whole page will be one whole image.
all designers use Adobe to do it,
illustrator to edit and make professional Photos, then Photoshop to edit and enchance these picture, then Use Pagemaker to make it magazines
Working with Design House Mag Cover Templates Part 1 of 2