iMac Intel 24" EMC 2134 Hard Drive Replacement
5 - 15 minutes
Slow tempo about an hour. No problems and no mistakes, thanks to the guide of Brittany McCrigler: iMac Intel 24" EMC 2134 and 2211 Hard Drive Replacement
The only thing that I didn't follow, was step 11 "disconnect the LCD cable by pulling down". I disconnected it from the lcd-screen itself.