Readyboost is a joke. I my flash drives once to see if i could find any that wrote faster or even read faster then my hard drive. None of them did. In fact i noticed that my HD was almost 10 times faster. So unless u have a VERY high end flash drive you aren't going to see any boost in performance. i agree with scott on this one. buying additional ram is WAY better (and actually can give considerable boost to performance as 1 gig sticks of 6400 RAM are 30$ now)