After my initial post regarding Horizontal Navigations I recieved a lot of good feedback on alternative methods to accomplish the same thing.
A very simple (and apparently very well known) method is to use conditional commenting. If I were to do it again I would implement conditional commenting to dictate one style for IE and another for non IE browsers.
Thanks all for the feedback. For those looking for there own solutions here is a good introduction to conditional commenting: quirksmode.org
