I just thought I would take a moment and express how pleased I am with my new iMac. All too often you only hear the concerns, not the great things about systems in a forum. Since setting up my new iMac I have been impressed with this system. I am not new to iMac, having purchased my first in 2007. My new system reminds me why I switched to Mac and have not looked back since. This new system is everything I had hoped for and more. There is not one issue to complain about. The screen is beautiful, no yellowing or dead pixels that some have encountered. It is extremely fast and quiet. Mavericks has been a welcome surprise, I find something new and impressive about it daily. I am sure I am far from alone in sharing this opinion. For those considering the iMac for the first time, or considering an upgrade...this is one fine machine. My system specs are; 27"(delivered 1/8/2014), i7, 32gb Ram,780M Graphics, fusion drive running OSX 10.9 Mavericks.