I upgraded my old macbook to a MBP 15" (2.53 i5) a few weeks ago, and I've noticed that the hard drive is very slow. A few days ago it got to the point where programs would stall as it would wait for the hard drive to respond, so I tried reinstalling OS X. Now the computer is a little smoother, but it still feels as though icons and thumbnails take an excessive amount of time to load (at least longer than my old macbook). I ran an xbench test on the computer (http://db.xbench.com/merge.xhtml?doc2=508688). The results show that the hard drive is definitely a bottleneck, but I'm not sure if this is just because it is a laptop hdd. Can anyone tell me if this performance is on par with other MBP's that have a 5400rpm hdd.