On the subject of Geonosians and Iguanas, having played as the Confederacy in our games yesterday I think I know what you mean. The Geonosian Drones certainly make funny sounds that although I've never heard an Iguana I can see why you might imagine them sounding like that. I was referring to Geonosian Warriors and Geonosian Fighters, who make more human sounds. These are the Geonosians I claim to be able to impersonate, not the more animalistic grunts and squawks of the Geonosian Drones.
Just clearing that up for my number one critic Viceroy.