For regular family shots, I don't think you need to shoot in RAW. I always use raw, but if it's just for fun, family, and forums, I use the jpeg. For high-end stuff, selling, printing, and pride, I do all the tweaking in RAW. With RAW, you can salvage or adjust dark pictures, but adjusting the Exposure Compensation, using the Luminesence to reduce noise (to a degree), lighten the shadows and darken highlights and things. For all this, I use the RAW processor in Photoshop.