I completed this repair last night. It wasn't as hard as I thought, though it did take me almost 3 hours to accomplish. My PS3 is back up and running, and the fan is so guiet not I can hardly hear it.
I will add that these pictures provided are from a 60GB launch PS3. I have an 80GB (MGS4 Bundle), and some of the inner workings are a little different. The card reader remains attached to the upper casing, and the ground wire for the A/C switch is run under the power supply... as opposed to over it as it is in this guide.
Overall, this is a great guide and the kit was a great price. I hope my PS3 will remain operational at least through Christmas... I've got my eye on the UC3 Bundle; )