geysergazer posted:Now with digital cameras and computers there should be a way to [quickly and easily] view those negatives as positives on a screen. If I could come up with such a rig I could sort&cull and pull out greats for later use.
What you propose is actually fairly simple. Scan the negatives on a flatbed scanner. Then open the resulting image with a good image-editing program. I use Gimp, but I'm sure there are many others that will do. Once the negative image is open, do an "invert colors," and you'll see it as a positive. Save the positive image and you can do what you like with it.
The catch is that 35mm negatives are rather small, and it may be hard to get a good scan. But the 120 negatives shouldn't pose any insurmountable problem on a flatbed.
If you really want the 35mm images, you might have to invest in a 35mm slide scanner.