Good topic, there are some good tips on AR 15 dot com, and natural sunlight, always seems to be the best, I too used an old fashioned dome type clamp light, but with a compact fluorescent bulb, it did not give me the results I wanted.
Natural sunlight.
inside the house. Built in flash.
No flash again, but up closer, using a dome lamp for illumination.
Inside obviously, flash and a dome type lamp.
pictures taken with a Kodak, 5 megapixel pocket digital camera.