I am looking at configuring my 15in MBP and was thinking about what hard drive to go with. I realize the 7200 will give me the added speed and performance over the 5400. However I was curious if I would add a significant increase in vibration and noise over the 5400? Since the new MBP has the 7 hr battery, any increase in battery drain of the 7200 should be offset by the battery. I am more concerned about the vibration when spinning up to speed and the noise associated with that. I wonder if the 5400 might be a better fit even if I loose some of the performance? Can anyone with experience please give me some insight? I went to the Mac store and all of the models had the 5400 in them. I wasn't able to play with a 7200.