Hi, I bought a WD Scorpio Blue and found that the noise was just too loud (not the drive head parking, used HDAPM to stop that, the general noise all the time). I found that if I applied pressure to the right side of the MacBook Pro then the noise would be diminished, but obviously this is not a workable solution. So I am returning that drive and I am looking to get a new one. But what should I get? I've heard that the Seagate drives are generally noisier than the Western Digitals, so I'm unsure about those. I'm wondering if whatever drive I get this noise will be there, has anyone had experience with other drives? I believe Apple uses Hitachi drives, so I've been looking at this one. Please let me know your experience with HDD's and which one I should get. The quieter the drive the better. N.B. cannot afford SSD. I am prepared to get a 320GB drive instead of 500GB if it will be quieter.