I am an amateur sports photographer and fixing to purchase a Sigma 70-200 f/2.8. I was wondering what y'all suggest for my next lens. I'm also thinking about purchasing a used D2h to add to my collection because I've heard very good things about them and the high FPS would be perfect for sports. But anyways, what would y'all suggest for my next lens? I mainly shoot baseball and softball with the occasional indoor volleyball.