3Dconnexion SpaceNavigator

You need a mouse and are a 3d geek, living in a 3d environment. Well, look no further, this is the mouse to take! You can push, pull, press, penetrate all directions and movements with it, and it is ideal for roaming around in Google Earth. And it says the precision is just great. 3Dconnexion is a Logitech company, so you can expect the same reliability.
http://www.3dconnexion.com/products/3a1d.php
World - $59/€59