Hi
I hope someone can give me some advice im reasonably new to this photography thing so go easy on me
Im going to a wheels and wings show (cars and planes) and im wanting to take photos of the cars & planes both moving and static.
Ive got a Nikon D40 with the standard 18-55 lens and a Sigma 70-300mm, ive also got a few old slr manual focus lenses as well but havnt realy played to much with them (given to me by a friend)

My question is whats the best lense (either what ive got or other) to use and also best settings for the photos?