It's been a long time since I visited this thread. I am glad it is still alive.
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http://www.instructables.com/id/DIY-...ALLSTEPS#step0
Thiat link looks very interesting indeed. One day I must find time to read it thoroughly.
*One question, the set up you use to connect the Canon to your computer for remotely shutter etc...is it possible to control two cameras at once? Just wondering if there's a feature to trigger two cameras at the same time.
For that see
http://www.atiz.com
*Also, since you say it will upload the photos immediately between shots..does this mean you don't requre any SD cards in the camera?
Well, immediately - by the way of speaking. It takes a few seconds to transfer a few megabytes from the camera to the computer. Just enough time to turn the page of the book. However, transfering all photos in batch from the SD card (Google Picasa does a good job at it) is a more convenient solution.