The 18-200mm VR II is an excellent Jack-of-All-Trades lens for genenral purpose photography and traveling. It is optically very good between 18mm and 135mm. If you are looking for the best performance: Since the D7000 is a DX body I would recommend the Nikkor 17-55mm f/2.8G ED IF AF-S DX over the 24-70mm f/2.8. I have both lenses and the 24mm is not very wide on a DX body. The 17-55mm is a much more useful range on a DX body. The SB-900 has about a stop more power than the SB-700 and can zoom out to 200mm. As for what to get, it depends on your budget and what your needs are based on what you will be shooting and the ambient conditions that you will be shooting in. The other thing to consider is how much weight are you willing to carry around with you. Both the 17-55mm aqnd the 24-70mm are both larger and heavier than the 18-200mm. So is the SB-900 compared to the SB-700. Good Luck and Enjoy your Nikons!