A co-worker of mine is a pilot and has a small plane. He was talking about flying when I jokingly said he should take me up to do some photography. He was actually excited because he has new glass in the plane and he asked when I want to do it. Well, now that I have the opportunity what do I look for? What equipment should I have ready? Is there a certain technique? Any tips or suggestions are welcome. We'll be flying over central Indiana. I have a Nikon D50, D90, and my lenses are: 28-200 nikon, 17-50/2.8 promaster, 28-105/2.8 tamron, and a 200-400 promaster. Thanks in advance.