For the last 3 years I've been using a Kodak EasyShare Z885 (KODAK EASYSHARE Z885 Zoom Digital Camera). I take a TON of photos, but I don't consider myself a "professional" or anything of the sort. I do, however, want a camera that has some more features than just "point and click." I'm looking for something that has good optical zoom (at least 20x), performs well in low-light conditions, and can take rapid photos of in-motion subjects. I'm open to any brands, but I'd like to keep it well-known (no totally obscure manufacturers). I'd really prefer not to go over $500. I'm really trying to take that transition to the "next level" above random amateur photography, but I'd like easing into it. Any suggestions?