Can anyone recommend a good sized mousemat? Preferably one of those teflon coated ones. I know it sounds trivial but so far i've only seen crappy foam rubber ones that dull the sensitivity of the mouse. The one i have now is alright but its far too small. Whenever i look at mats on the net they're either the size of a postage stamp or bigger than a duvet cover. The best dimensions would probably be about 8" by 9"