hi, i am in the process of upgrading my D60 to a D300s and i am looking at the nikon 70-300mm lense. the only thing i am stuck on is the difference in price between the VR and non VR option. does the VR really make that much difference??? it is about $400 difference between the two and i dont want to fork out all the extra if its not that necessary. any help would be greatly appreciated! thanks!