MarkC Mouse Acceleration Fix
A secondary download location for the MarkC Mouse Acceleration fix for windows 7, 8, and 8.1
You can either download it now or read about it and his website here
Download MarkC Mouse Fix
*NOTE* 1000hz on an AMD Phenom x4 965 I can pull 8% CPU usage with my mouse. Assuming modern CPU's can handle any refresh rate is a myth, test for yourself, lag spiking during a firefight is not a good idea.