Hi all. I just did a lot of Googling for these answers but didn't seem to find much, so I thought I'd ask here. I just upgraded an early 2006 iMac 17". It was originally a 1.86GHz Core Duo model with 1GB RAM. It is now a 2.0GHz Core 2 Duo with 4GB RAM and an SSD. These were parts I've had lying around for a while, so I figured it would be a fun project. And it was! It now comfortably runs OS X Lion. Now, I'd like to upgrade its wireless card to a wireless N capable card. The iMac has had its firmware flashed from "iMac 4,1" to "iMac5,1", not sure entirely what all that changed, but it was successful (I still had to install Lion the hard way though). I was wondering if the internal AirPort N cards from the slightly newer iMacs/MacBooks would work fine in this iMac now that it is a C2D model and has had the firmware flash. If anyone knows, please let me know. Also, I'm 99% sure it will, but I wanted to double check - will a T7800 CPU (2.6GHz C2D) work just fine in this iMac? I'm assuming since it's from the same family as the T7200 inside it now, it should. And what about a Core2Extreme X7900? Any help is appreciated. Just want to be sure before buying any other parts.