Its best for a beginner, in my opinion, to just use an online hosting server (like ours) which already has MySQL and PHP configured. If you read the link from my first post, it does tell you a little bit about installing the software on your own computer though, but that's unnecessary for your first time developing in MySQL+PHP. In other words, just code your PHP files in notepad.exe or something and then upload it as if you were editing your html files.
You'll have no problems learning MySQL and PHP by yourself (without the help of a "professional") if you put your mind to it. Follow the tutorials that Bryon and I have posted here.
@Bryon: That's a lame hack. If he learned MySQL+PHP, he would only have one file to edit ever+a MySQL database. Way easier IMO than fixing 200+ pages with include. Then again, it does do exactly what he requested, though what he requested still takes a ton of work to maintain.
@Tony M: What's your website anyways?