I make these tabs for newest version of QTTabBar. Newest version support now custom background! I made 2 backgrounds, with menubar enabled and disabled (check preview image).
These tabs looks best with 1280x960 screen resolution.
I use this great hill's brushed theme [link]
Skin could look nice with other brushed themes too.
Download QTTabBar from here [link]
Make sure you set these from QTTabBar settings-appearance:
Heigth: 22 px
Width: Fixed, 200 px
Toolbar background image: Tile
Thats all. Enjoy brushed lovers