Before buying a case, think about where you want to install CAJUN. It's likely going under a car seat, in the trunk (boot), or behind your home stereo system. You can visit the CAJUN web site to see a list of some case manufacturers (note that we do not endorse any particular manufacturer - at least until one decides to send the CAJUN developers free samples :] ).
One note about cases - choose one with a well-built power supply, or install your own. I can relate from practical experience - one case I used had a less expensive (read: cheap) supply that was not able to withstand higher temperatures. When the outside temp reached about 90F (about 32C), the supply shut down until the temperature retracted a bit. It was soon replaced with a better quality supply that could withstand Boston weather.
One alternative that works well is to use a laptop as a CAJUN. It's small, has low power requirements, and can be more temperature resistant than a traditional computer.
We've used three types of input devices in CAJUN:
By far, the most popular output device has been the 20 character by 4 line LCD display with backlight. There's enough room for all of the output, and the backlight helps when driving at night or in your home entertainment center. There's also a more expensive flourescent version that looks really pretty.
LCD displays can be connected to a computer in two ways:
Normally, to generate audio you'll be using the built-in audio card in your computer, plus a little software to interpret MP3 or OGG files. Cajun supports other audio devices too, such as the CDROM drive for playing audio CDs, and FM devices for playing FM radio. As we find access to new devices, we try to add them to CAJUN.
You'll likely see access soon to other devices, such as a GPS receiver.