CSS Library: Horizontal CSS Menus: Here
Chrome Menu Bar
Author: Dynamic Drive
This is a lightweight "chrome" looking CSS menu bar. The menu uses two variants of the same background image to create the hover effect. The first background image is applied to the entire menu bar, while the second sporting a different color is applied only when the mouse moves over any of the menu links. The menu items can easily be set to either align "left", "center", or "right" on the page, just by changing the "text-align" attribute.
The two images (resized for easier download):