Two days ago I got the itch to take up photography. $800 later, I now own a Nikon D40, a 2gb scandisk, a nice case, and a 2 year accidental protection plan from circuit city. I've been playing around with the camera and figuring out how everything works and have gotten the basics down. I'm only 20, and I'm mostly using the camera for recreational purposes and to just point and shoot here and there. Nothing major, so I figured the D40 was the way to go. Well, now the past day or so...I've been taking pics in JPEG format and uploading pics onto my pc and saving them, editing them etc etc. My question is...what are RAW files and what are the advantages and disadvatages to using them, rather than JPEG? Thanks guys!