I'll be picking up this netbook up in the next week or 2 as a little birthday present to myself.
straight off the bat i'll be putting 8Gb of ram on it and installing W7 Ultimate. I'll also be using a 16Gb Transcend ultimate (class 10) completely dedicated to readyboost.
I was thinking about putting a 250Gb Moments XT in there but we shall see. it depends what my budget is at the time.
Later on, i might think about putting an SSD in there if they get anymore cheaper.