I am trying to decide between adopting a cms and using html with several include calls to call in the content that will apply to all pages and, possibly, the some of the page specific content too. The latter so that I would not have to cut it out of the main pages if I want to change the layout of the main pages later. I realize I would have to create new main pages for each specific page so the respective pages called the correct specific content.
I don't know php and mysql and don't want to learn it.
Does this limitation mean I should stay with ssi rather than go with a cms?
Consider using a "smaller" cms like globalmoxie to distribute and manage your include files and also your graphics. With some forethought in your file layout, arranged so that both the cms and the primary pages have paths to the includes, you can greatly amplify the power of both systems.