If you need to be abused in making word counts (or just being forced to write for a certain amount of time), check out Write or Die. I just discovered it today, but I write in terror that screen is going to turn red on me again! (Though it supposedly makes noise, neither Chrome nor Firefox are playing anything that I can hear. And yes, my sound is on.)
Sprinting past my sister in no time at all! XD But my fingers hurt now…