I have a d40 with the kit 18-55 3.5-5.6. I've taken some nice photos with it, but I want something that can give me more range. I'm not looking to spend a ton, a couple hundred maybe. I was looking at the Nikon 55-200 AF-S VR 4-5.6, but the 4-5.6 worries me a little. I tend to take alot of wildlife shots which sometime require speed, but I've heard some negative things about the speed (or lack thereof) of the 55-200. Can anyone comment on this? I know it doesn't really go together, a budget and a lot of light. I know that this is my first seperate lens purchase and at this point it's not like I'm a professional. Just looking for some opinions on this! Thanks!