A set of Vista Panel Backrounds to make your panel look like Windows Vista. (Yes... Vista Again :-) )
Their best suited for the bottom panel. Simply Right-click the Panel, and click on Properties, Now, make the size of the panel 32 pixels. In the Backround tab, select Backround Image and choose your preferred backround from this package.
The screenshot is using the Normal backround. The second, the Aero Panel Backround. The wallpaper was also created by me, and can be downloaded at: http://gnome-look.org/content/show.php/Ubuntu-+Linux+for+Human+Beings+Wallpaper?content=111985
I'm still working on it, and adding new panel images.
P.S. I honestly didn't know that the icon in my previous screenshot violated a trademark, so thanks zmile for pointing it out :)