Really well done!! I LOVE these 500 series, and I have three working 540c, and several parts machines. I bought a machine from a gentleman about four years back, and it had a screen problem. But, it also had three things in it: 1. 32 Mb Ram card. 2. APS 800Mb hard drive 3. NewerTech 603e 183Mhz PPC upgrade card!!!! Believe it or not, I have the 540C running Mac OS 9, as it needs 32Mb of physical ram, and then it uses 32 Virtual Memory as well. Keep up the great videos, I am starting to publish these as well.