The noise level of my 27" is really starting to bug me. My fan speeds hover around 1150rpm for optical drive, 1300rpm for HDD and 1100rpm for CPU. I'm not sure if it's just one or all that are bugging me with the noise, but I figure if I can avoid just one that might help. If I order a BTO iMac from Apple with an SSD and no mechanical HDD will there still be a fan? If there isn't then I might consider selling this one and re-buying, heh. I have 2TB FW800 drive that's pretty silent. Plus I can cable it under my desk where it'll make less noise. Also, does CPU model have any effect on the heatsink fan, or do all of them use the same cooler? I have the 3.1GHz i5 in my machine and I'm wondering if the 2.7GHz would be quieter. Maybe these are silly questions but I'd really like to get this machine quieter. Any tips are appreciated!