Actually, I did a little Googling and found someone trying to use two Wii Nunchuks together on a single Arduino (Nunchuks are hardcoded with 1 I2C address, so this is a similar problem to what I’m facing). It was suggested that it might be possible to run one using Wire.h and the other using a software-serial library. Now that I think of it though, maybe I could gut a Nunchuk to use as the third gyro ; that might be the simplest solution here.
My project is a biped robot. I’m putting one gyro in the body and one in each leg. This way I can measure the angle of each leg in relation to the body as they are moved.