If you've got a mouse with more buttons than you ever thought possible, a sweet gaming keyboard, but are still looking for that extra edge, you you might think about using your feet to do some of the work.
The Fragpedal Elite USB Gaming Footpedal is actually two pedals, each containing two buttons. That gives you a total of four buttons, but limitless possibilities. The buttons can be set to any key, but they take things a step further and allow you to set it so that how you press the buttons controls what key is triggered.
For instance, you can set it to activate one key when the button is pressed, and another when it's released. Or different keystrokes for single and double-taps with your foot. Or odd and even taps can trigger different actions.
The best part is that it doesn't need any drivers, it is recognized as a simple mouse. The pedals actually store 32kb of memory which allows you to store all of the necessary information for up to 30 different games and applications. You can pick one up now for $79.95. It's more than most people pay for a mouse, but if you're a hardcore gamer, it could make all of the difference.