I had a "first look" into the 27" iMac last week... when I tore the thing apart right down to having nothing but a bare aluminum shell in front of me. I think first time tear downs are the only interesting thing I ever do at work. It is a bit more awkward to work on than the previous gen models in my opinion (especially the new logic board placement since the new unit has no removable bezel) but still not very difficult.