>>5-6
Actually, you don't want to begin with CGI unless you have a good reason to. To learn web technologies, play around, and to get actual results and simple things done fast, PHP is the best choice.

Learn XHTML and focus only on it until you understand how to make forms. No need to learn about CSS yet. A good place to learn is http://www.htmldog.com/

Then do the same with PHP. Sorry, I don't have a good book or website recommendation. Just make sure you get something good, reading bad tutorials can cause irreparable brain damage.

I recommend you get a good text editor with syntax highlighting right from the start. It allows you to spot mistakes easily, and frees you from having to memorize tons of details. Something like E Text Editor or Textmate.
Once you have some experience, you should also get Firefox extensions for developer - like Firebug or the Web Developer Toolbar. Just playing around with them will teach you a lot.

You will also want to learn CSS and JS eventually. Just apply the same learning process: get the best site or book, the best tools, and just play around until you get it.

PHP can sometimes be something you graduate from, but even if you intend to do serious web apps, you should consider learning PHP as a stepping stone.