Accelerometer Recommendation For Project

Hi,

I need a good simple accelerometer for my project and need some advice. I've spent a while playing around with a MMA7361 Accelerometer Sensor Module, but after reconfiguring my sketch mant times I cannot get accurate reading from it. For example, when the module is in a fixed position: The Y axis inline with gravity and the X and Z perpendicular to it. I don't get the readings I should be getting, which would be something like this: Y = a value equivalent to 1G and the X and Z = roughly 0.

The accelerometer will be simple mimicking a users mobile phone movement, then later analysed in MatLab.

Thanks in advance :)