Seo?

I'm curious if a program exists that can take a complete website structure and find synonyms to various keywords and embed them in indexable places (meta/title/alt tags, etc.). Basically I'm looking for a way to avoid punching in keywords for every. single. page. - what I'd like is an automated way of doing this. Any ideas?

Hi Mike. I keep on top of SEO software but have never heard of anything like this. If it does exist I would also lay money on it not doing a very good job.