I’m absolutely hooked on my SpacePilot, the top of the line 3D motion controller from 3Dconnexion. I’m not convinced it increases productivity by the 30% they claim, but I’ve noticed it dramatically reduces fatigue in my hands that alone helps me work longer (which I guess DOES increase productivity!). Still, the $400 price tag makes it a tough leap for many. 3DConnexion now has a very low cost, entry-level navigator if you want to give this style of input control a try. It’s called the SpaceNavigator, and can be had for just $60. You get the same basic 3D control, just no integrated wrist wrest, no LCD, and only two buttons. Still…for the price…this is great and would also be great for traveling.