Shot these pics from my backyard a couple hours ago. There was a brush fire just over the ridge on the hill between our house and the 210 freeway, a little more than a mile from the house. Nothing real worrisome, and they had it knocked most of the way down by the time I go the camera out, but a good chance to try out my telephoto lens (low-end Nikon 70-300mm) and the rapid fire mode on my D50. This is one of three helicopters I saw dropping water on the fire. You can see the bulldozer opening up a fire break, while the chopper is hosing things down just below the ridgeline.
These shots are cropped from larger frames so they're not the highest quality (roughly the middle 1200 x 900 pixels from a 3000 x 2000 frame, just for reference).