Just received my new Raspberry Pi and the Gertboard! So here's a picture of the new case with both installed. Works way better than I could ever imagine!
One thing that makes me nervous is working on the RPI and Arduino with all the circuits exposed. Well I had some acrylic plastic sitting around for the past few year and I had a spare 30 minutes this afternoon, so I cranked out a protyping platform/protective case. The boards will mount inside so they are secure. All 4 sides are open so I can run wires in and out with no problems. On the very top I think I am going to mount the solderless breadboard.
The top cover comes off by removing the 4 top nuts. Maybe make it even easier by using wing-nuts or even barrel-nuts if I can find them. The whole thing measures 8x9 inches and the opening is a generous 2" inches. Enough room for the raspberry pi, an Arduino mega 2560 and a relay board or motor controller.. Can even stack my pi face or Gert board.
If there is any interest, I took a lot of photos and could make an instructable with all the details. Really easy and a quick afternoon project that looks great. So if you would like to learn more, leave me a comment and let me know!