Hi everyone, i want to get a good telephoto zoom lens, I have a canon 75-300 mm len i bought a few years ago for about 400 euros its only alrite. I want to get a better lens now for taking animals far away and birds. what would be the best lens for 800 to 1500 euros for a Canon camera. I am also thinking of upgrading my camera 20 D to a Canon 5D mark II so the lens would need to be compatable. Any help, advice or suggestions would be great, thanks.