Currently there are 16 native Standard Zoom lenses for Nikon D3X and all of these lenses are autofocus (AF) type.
Nikon D3X doesn't have a sensor based image stabilization system but 8 of these Standard Zoom lenses features optical image stabilization.
Since Nikon D3X has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 6 Standard Zoom lenses with Weather Sealings.