I'm experimenting with using two digital cameras side by side on a bracket to create stereographic photographs. The Casio EX-S600 is uniquely suited for this task because of its extremely small size, 6 megapixel photo capability, high quality MPEG-4 video capture mode (640x480x30fps with 44.1 KHz mono sound), relative low cost (about $300), as well as ISO 1600 low light capabilities.
After giving the Casios a try, I decided to try dual Panasonic DMZ-T1s, which give me better overall detail and up to a 12X optically stabilized zoom.
For stereo photo editing and parallax adjustment I'm using a great program called "Stereo PhotoMaker", which is available for free download at:
I use an old antique stereo viewer, commonly available at many antique stores for around $50.00.
I've also had great success authoring full resolution stereo video with this setups, both at full resolution and for viewing on an iPod video. The photos also look good on the iPod.
The bracket I'm using is about $12.00 at most camera stores, it normally would have a cold-shoe on the end, which I removed by drilling out some small rivets. Since the bracket normally only comes with one knob, you'll either need to buy two and steal the knob from one to put on the other or buy an extra knob. The knobs also have a tripod female thread on the bottom so you can very easily mount the whole rig on a tripod for stable simultaneous operation of the shutters.
For best experience, download the full size original images and view them full screen without the distraction of the non-3D Windows interface. For online viewing, select the "large" size from the "other sizes" selector below each photo. To download images, right click on the picture and select "Save Image as" from your browser's popup menu.
Please note I've recently reorganized the photos into subdirectory galleries organized by subject.