I just wanted to see what people think about these lenses, the tamron 18-250mm and the nikon 55-200mm vr. I am looking to get a lense because I like to take pictures of wildlife and my twins, I am considering these two lenses. My concern with the tamron is there is not vibration reduction and I really think I woul want that. I like the tamron because it really is one lense takes most. Can you please give me some pros and cons.