The guide was extremely helpful, however, there are a few things that I wanted to mention that might add to the guide:
* Since my work surface was large enough to allow the bezel to sit on a flat surface while working on the CPU, I did not need to disconnect the microphone cable, thus I wasn't required to remove the tape from the plug.
* The iMac I fixed was running for over 4 years, so there was a lot of dust around the fan and stuck to the inside of the bezel. This surprised me. Someone might want to keep a small vacuum handy, or get a can of air. Be warned: This dust will require you to clean the LCD. No getting around it.
* Since I have big fingers, I was finding it almost impossible to reconnect the LCD cable that is underneath the power inverter logic board. So I found it much easier to remove the four screws on that small logic board, lift it up, plug the cable back into the bottom, and reattach the board. Otherwise I would have spent a long time trying to plug the cable.