I have several hundred 35mm slides I wish to put into digital format. Most are Kodachrome 25 slides 25 years old with high contrast (Antarctic photos with lots of sunlight and white snow). I wish to generate digital formats primarily to save them and ensure the photos can be handed down to future generations of the family and secondarily to make easily viewed DVD slide shows.
It seems I have several options:
1) Send them out for professional scanning.
2) Buy a lower end slide scanner and do it myself. Sell the scanner when I am finished as it has no future use for me.
3) Buy a general purpose flatbed scanner. Probably not as good of quality as a slide scanner, but a flatbed scanner would have some future usefulness to me.
4) Upgrade my digital camera to a 4 or 5 meg version and use a slide copier adaptor to slowy copy the slides one by one (I've got time since it's Winter and there is no deadline for completing the slides). I understand Nikon has an adaptor for their Coolpix line of cameras. This would perhaps be most economical as the camera would have great future use for me.
The slides will not have any profession use, but obviously I would like to preserve as much of the original quality as makes reasonable sense for non-commercial personal use.
Any advice are warnings as to these options?
Thanks for any help you might provide in choosing a path to go down!