Sorry to be asking so many questions in a row. I hope I'm not violating some unwritten forum rule. I just have several things that don't necessarily belong in the same post. That being said, do you notice a difference particularly in 5x7 snapshots between 10 megapixels and higher? A camera store owner recently told me that the number of megapixels isn't as important as the size of the sensor, which was something I'd heard before but am not sure if its true. Since I primarily take photos to be viewed on a computer screen or as prints I'm really only concearned with the number of megapixels to achieve the highest quality in those sizes. So, what's your take, is there really a noticeable difference between a 10 mgpxl camera and a 16 or 20 one?