TweakTown posted a review on the Microsoft SideWinder X6 Gaming Keyboard
Rocking up with the previously reviewed SideWinder X5 mouse, I was lucky enough to receive an X6 keyboard to complete the desktop of evil. This keyboard boasts a full backlight and letter illumination with a built-in dial to adjust the intensity.Microsoft SideWinder X6 Gaming Keyboard Review
The coupe de grace, however, comes with the hot swappable numeric keypad module that can be changed up, left or right depending on your preference, or if you want to add more macros to the left hand side.