I own a Canon PowerShot A620, and I can't seem to get the right settings for taking sports pictures (basketball to be specific, inside a gym). The light is very dark in the gym, and usually my photos turn out somewhat grainy. I've tried turning up the ISO level to 400, which seems to help, but I don't want that grainy look. When I use flash (which I'm sort of opposed to doing), things turn out alright, but sometimes are blurry in the background. When I don't, and I use Shutter-Priority mode, things get grainy and the colors are a bit off. Can someone out there please tell me what settings I should be using? The more specific is obviously going to help me out the most! I'm taking these pictures right on the court, so it's NOT a matter of whether I can get up close or not. Thanks!