Go with the Logitech MX518!!! It is 1600dpi and can track movments at 15g's with a 5.8MP camera!!!! not only that, but you can toggle the mouse sensitivity on the fly with the 518 w/o drivers of any kind! completly plug and play compatible. the Razer mouse needs drivers to operate at its potential dpi and to toggle the mouse sensitivity. and the MX518 is much more comfortable in your hand.