Now that you have brainstormed a topic, fleshed it out and thoughtfully developed a script it is time to move into the production phase. This phase can be simple or can become a Hollywood production. I would recommend that unless your last name is Speilberg that you start nearer towards the simple end of the continuum.
At the simplest level is using images and a recorded narrative. A digital camera is perfect for capturing images for your story, and a scanner is helpful if you are using old photographs.
Scanner
One way to digitize pictures is to have them scanned, or to purchase (or borrow) a scanner. There are companies throughout the valley that will take your photos, slides and negatives and digitize them. There are also companies where you can send photos and have them scanned (digmypics.com, scancafe.com). You can also purchase or borrow a scanner and do it your self. Consumer Guide provides links to a good overview of of how scanners work and a comparison of different typesof scanners. Scanners and scanning can be tricky business as you delve into resolution, for more information check out scantips.com. The key with resolution is getting enough, but not too much:-) Usually scanning at around 200 DPI is adequate for images that will be brought into a video editing program.
Digital Camera
If you own a digitial camera, you own a scanner. Take you pictures out into some natural light (avoid direct sunlight and glare) prop them up and take a picture of your picture. Be aware of your shadow when you take the picture. I am not the only one with this idea 
. It is a quick and easy way to get your pictures in the computer.
Once you have your pictures digitized make a copy of the folder. Put the originals on a DVD, CD or portable drive for archiving. Use the other folder for your project. This way no matter what happens you have pristine originals that you can return to.