I’m really no expert, and critisism is not what i want to bring. Feedback sounds nicer:)
I use canon 450D with an old analogue canon 80-200 telelens, I had a crack with it at just one airshow so far at duxford last year.
I use a medium setting for filesize and do all my editing these days with windows live photogallery.Simple and enough for me to get a decent enhancement.