I have a Canon Rebel EOS with two lenses, the EF 75-300mm 1:4-5.6 III and the EFS 18-55mm. I have been taking pictures with it for several years of my kids equine riding events, horses very much IN MOTION! My outside pictures usually turn out pretty great, but the indoor shots not so much. We are getting ready for a big show and I want to be prepared! Do I need to update my camera? A lense? I've been reading about a "faster" lense?? And would a lense hood help? What's pathetic is I don't know a lot about photography, but I know what pictures I like. Does that make sense? I've experimented with all the settings but haven't been able to get good shots inside. I also can't use a flash.....