I started to get lost in all those different types of gyros and accelerometers you can find on SparksFun. It takes quite serious research to build an IMU in this way. Although its very interesting I’m afraid we don’t have the time for this. I also found some projects of people who connected the Wii Motion Plus to the Arduino, but those slipped my attention. After a tip of Frans I took a closer look to those projects. I think its actualy worthwhile to experiment on this.