I have (had) an early 2011 top spec imac (27", i7, 8gb), that ran very hot and then konked out. The tech could not even get it to run the diagnostics. I was told that there is no point getting it fixed even if they can find the cause. The heat will have hugely reduced the remaining run life of the other components and I should bin it... he said it was full of dead flies and likely this caused the overheat! does this sound like sound advice? Secondly - is there any chance I can use it as a dummy monitor for a mini mac replacement?