Photographs are digitized with a color flat-bed scanner. Slides are digitized with a slide scanner. These scans are very high quality. Inexpensive digital cameras like the Apple QuickTake 150 are excellent when the result will be displayed on a computer screen. Expensive digital cameras are required for magazine-quality printed output.
Sound input is part of most modern computers.
If synchronization is required, it is important to capture audio at the same time and with the same device as video. Video is most easily obtained with a video camera and imported with a video digitizing card. S-VHS input is desirable. Digital video can rival broadcast video in quality, but computer hardware demands can be high. Create a graphic design.