This is the last project I've been working on. Creating an homebrew DIY breakout board for the ADXL345.
Why? Because it teach you a lot and once you understand the process , possibilities are endless.
So, this is the result:
http://www.varesano.net/blog/fabio/homebrew-diy-breakout-board-adxl345-accelerometer-first-process-try-tested-arduino-proces
Next step: an ITG-3200 breakout board and one for the HMC5843 ...
then combine everything into a completely digital (I2C) DIY IMU.. eheheh