I know the Canon SD cameras usually are less than 3/10th of a sec. shutter delay and so do some of the Sony ultracompacts. The only cameras I know of that keep shooting while holding down the shutter button are DSLRs, and that's a whole different field of shooting.
I have a Sony 5 megapixel Digital camera that is about 4 years old. I have never taken more pictures than I have since buying this camera. However, because of the delay between pushing the button, and the picture actually being taken, I have many pictures of sides of heads, blinks and no smiles. Because of this, I have decided that I need a new camera. I'm looking for one that doesn't have any, or much delay. Also, I've seen cameras that can take more than 1 picture as you push the button. When looking at camera statistics and other info, how can I tell what I want? Any suggestions or info will be greatly appreciated.