I received my new (late 2013) 27" iMac yesterday. I am very thrilled with it, but I have to admit the fan noise is a little more than I had hoped for. I ordered mine with a 256GB SSD for two reasons - Speed and noise reduction. I mean the fans aren't loud at all, but they are there so I notice them. They aren't really audible unless there is dead silence in the room. I am very sound sensitive so I'm sure I am making a big deal over nothing. My 2012 Macbook Air makes about the same amount of fan noise. Just curious what others have to say, especially those of you with straight SSD models.