Im starting to look into getting a DSLR since I feel my S3 isnt cutting it anymore when I head to races. Was thinking of a used XTi body with a pretty nice zoom lens. Looking for something that will do really well with panning. Something that will focus fast but pics wont lose quality at high zoom. Something in the 200-300mm range. Dunno, just rambling about what I want. I really have very little understanding of how DSLR lenses work Learn me. So I guess Ill need a lens for fast action, panning shots. And maybe something else for taking paddock shots and other close up images. Flame on.