Okay, I think I may bite the bullet and get a decent lens for my Digital Rebel. I have the 18-55mm that came with it, and a cheap Sigma 75-300mm. I'm actually thinking about getting the 28-135 IS lens from Canon. Is there a more useful lens that people could suggest? I was wondering about a 28-200mm with some decent glass in it? I mostly shoot motorsports. And my big lens is too long on the wide end sometimes, and in general the glass isn't the best. What do you think??