[bwoodfin]

I am looking for a good all purpose telephoto for my Nikon D70. The Nikon - 28-200mm f/3.5-5.6G IF-ED AF Nikkor Zoom Lens looks good, but reviews say it doesn't work well with action sports due to the slow autofocus. I am also not absolutely sure it is compatible with the D70. I am not a professional, but I do want to use this for action pictures. How much difference will I notice in speed from the 18-70mm that I am using now?

If this is not a good option is there another in this price range you would recommend (maybe the 55-200mm F/4-5.6G ED AF-S DX when it becomes available)

Thanks.