The Logitech Chillstream Gamepad has 2 things going for it.  It is USB based, making it work on both platforms, and the 40mm fan inside will keep your hands cool.  Head over to Techgage to see how it performed.
“One common problem that PC and console gamers alike experience, is sweaty hands. Yes, this can easily happen during an intense Moto GP or Need for Speed session. Logitech to the rescue with their latest gamepad, which includes a beefy 40mm fan to help you keep your cool during gameplay.”

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