That guard you just stealth-killed in Dishonored never heard you coming. But everyone else did. Which is why you might want to consider a noise-dampened mechanical keyboard of some sort. There are a few of 'em out there, not least the Matias Quiet Pro we reviewed last year, and now Razer has a keypad option solely for gamers: a new Stealth Edition of the original Orbweaver that came out in January. The price is unchanged at $130, as are the ma