Anybody yet have experience with the noise level from the new 2011 iMac 27"? I'm considering the 3.4 GHz i7 & the 2 GB 6970M GPU. Unfortunately, in its specs, Apple lists only the idle noise level. I realize that noise level depends on temperature, hence load, but it can be measured. But measuring it is so often not done. And an Apple Store is hardly an ideal environment for stressing a system to hear how loud it gets.