We have version 6.0.2 and 6.0.3 driver running on the previous version of Intel MAC perfectly happily.
On the new one, however, even after firmware update, 6.0.2 and 6.0.3 both cause the machine to not boot properly. In neither instance is it possible to log on to get rid of the driver so a safe boot is required.
I have installed version 6.0.1 and the machine is fine. If you are using FCP you probably only need 6.0.1 anyway.