Hey Ya'll Now that NCAA soccer season is just around the corner, i'm looking to get a better lens to go with my D300. I'm shooting mainly for the school newspaper, but also for fun in general. I use a 18-70mm and a 28-300mm lens at the moment, but i'm really looking for a better performer for sports. On top of that I would love to do more Macro shots, so if i could get one that would be able to do both well, i would be a happy camper. So for those of you with outdoor sports photography experience: What focal length lens do you typically use? Zoom or Primary? Thanks!