Need some help with CSS

I have got this site, http://test-website.bw-online.co.uk/

And I need to put some kinda navigation bar in using the css without taking away the basic retro feel.

Anythoughts?

Are you wanting like a drop down menu or something?

Anyway, you might try here. http://www.alvit.de/css-showcase/css-navigation-techniques-showcase.php

I could use that. I'm just looking for some advice really on what style I should head towards

Oh... well how about this style.....

the top of the main content box, there be a horizontal menu that drops down. Of course I'd get other's opinions on this too.