Despite three trips to East and Southern Africa, I have yet to purchase a decent camera for both landscapes and wildlife! I plan on changing this by purchasing a Nikon D7000. I chose this camera body because I am relatively new at photography (although I know the basics and the majority of the lingo) and I don't feel comfortable spending a ton of money anyways (even if I could!).
In any event, I am searching for a telephoto lens for wildlife as well as a wide angle lens for landscape shots. However, there are so many options (and prices!) that I don't really know what to do (especially while factoring in my novice skills and pricing). For wildlife photography..I know that zoom is key and I will undoubtedly be focusing on a lens that gets the job done. However, I also want to practice with action shots of some of the carnivores that I study and for that, I have no idea what to look for. Moreover, I plan on purchasing a wide lens shot for "nightscapes". The Serengeti is stunning at night and I have always wanted to capture the serenity of it all. Once again, I do not know where to start. So in sum, does anyone have any lens recommendations (that factors in budget) for: