So. To sum up.
A gyro is "solid state" and detects acceleration in one axis.
I guess I'm looking for something that will detect position change. This can be done with acceleration, but the difficult task is going to be to keep track of all accelerations and compute change in position from it i.e. sum of accelerations = velocity, sum of velocities = distance. So, I'm going to need a micro controller chip with a bit of RAM to do it. I guess I don't need to go that far if all I'm looking for is to smooth out small variations in yaw, etc. I hear that some guys use gyros for the rudders of their turbine jets.

Thanks very much for your input.

-Q.