Contour's RollerMousePro reviewed
ExtremeTech got their hands on Contour's RollerMousePro and wound up a convert to its ergo-friendly design although,
we've gotta say, they seem to go a bit overboard in their praise at times. The device, which attaches to your keyboard, has a "rollerbar" in the middle that you manipulate to control the cursor along with a set of buttons below it, so you never have to move your hands from the keyboard (which is not included, by the way). Not so convienent is the price: $200US. You'll also still want to keep a regular old mouse handy if you plan on playing any games. Mixing this thing with Half-Life 2 looks like a recipe for an ass kicking.