Automatically add posts to pages

Hi all!

I have a gaming website, http://www.terminalgamer.com, which has numerous categories, “News”, “Reviews”, “Features”, “PS3”, “Xbox 360” etc.

What I want to be able to do is:

1. Write an article and tag it. For instance, if I wrote an article on a game for the PS3, I would tag it with PS3.

2. When that article publishes, the tag identifies it as a PS3 article and adds the link to my PS3 page. That way, if the article is a month or two old, gamer’s can find it by clicking on the PS3 page to access PS3 specific information.

Is it possible to do this? I have a sneaking suspicion that I will have to create a new php file. What would the steps be to do this?

Thanks so much!!!