I'd go with the Razer. Razer by far, in my opinion, makes the BEST gaming peripherals on the market. When the company first started it was aimed at engineering (not just manufacturing, actually researching and engineering) to make a better gaming mouse, which they have. I personally own a Razer Starcraft 2 Edition mouse that I love. I also have the Razer Tarantula Keyboard, the Razer SC2 Headset, the Razer Barracuda AC-1 Sound card (which is awesome fyi) and a Razer Mouse Pad. Normally with how often I play pc games and use my keyboard, I have to recycle all my stuff every year. I've had this keyboard now for about 3 years, and this mouse for about a year. I've only had Razer mouses since 2002 if I remember correct.