A camera’s megapixels (MP) are how many million pixels the sensor has onboard to capture light. The MP number alone does not indicate quality but rather how much information is gathered. So how many megapixels is enough in a DSLR depends on sensor size as well as how large you’ll print or scale the images. Your storage capacity (those high MP files take up a lot of space) is also something to consider. Unless you’re doing ultra-large-scale work, 20 megapixels is going to be plenty. Even less is acceptable for an amateur user. For quality, focus on your lens, aperture setting, and sensor size/quality—particularly how it deals with light.