Hi Spaceclam and All,
With a bit more web sleuthing I found out that the Futaba GY series gyros
http://www.towerhobbies.com/products/futaba/gyros.html
utilize the micromachined mims chip gyro technoligy.

I think they all come with a normal, and heading lock option select.
To give an idea of the performance of this gyro chip, it is used in the new I bot wheelchair that elevates the rider to face to face height..WHILE BALANCING ON TWO WHEELS!!
And here is where the actual gyro component comes from:
http://www.spp.co.jp/sssj/silicon-e.html
Any ideas on how to acquire some of these??
Cheers,
John