for my new laptop... im not so much concerned about price as i am performance and storage capacity. my choices are: 80gb/5400rpm 100gb/4200rpm 120gb/4200rpm my instinct is to go for the 80gb due to the faster rpm (hence faster access). problem is, an 80gb hard drive really only comes to 60gb of usable space (after the o/s and everything is taken into account) my question is: if i go for a 100 or a 120gb will i notice the performance difference? should i go for the 120 and not worry about it? my processor will be a 2.0ghz amd turion with 1gig ddr ram. thanks for any replies!