Stephen,
You can find a data sheet for the "GyroChip" here:
http://www.cvhsrobotics.org/resources.htm
For robotic applications, we use a Kalman filter to clean-up the raw output of our accelerometers and gyros. Using google, I found a pretty cool page devoted to Rudolph Kalman:
http://www.cs.unc.edu/~welch/kalman/
Have fun,
Kevin