Hey guys, I'm a complete noob to photography. I've never owned anything other than a point and shoot. I'm planning on purchasing a D-SLR very soon. My problem is I can not pick the right camera: My choices right now are the Nikon D40X, and Olympus E-420. Those are my only choices, because I have a 500$ gift card to a store, and those are both ~$450.00. What should I look for? From the research I've done Nikon is more popular, but I don't know why. Olympus seems a lot smaller, but there is not that many people with it. What are the things I should pay attention to when purchasing? This camera is primarily going to be used to take pictures of motor sports. All the reviews I've read go in to great detail, but I'm a noob and don't understand most of it. If someone can explain what I should look for, or the pro and cons of each camera, help would be greatly appreciated. Thanks.