Interesting idea, still not a Mac.
I'd trade any (edit: no, all...) of my Macs for that glorious work of art in a second.
I'm surprised you didn't see the link to the steampunked Mac mini from that page:
Yeah I missed that one, that is a work of art. The first link just doesn't quite do it for me.
Jake is a great modder. He's also etched iPods on TV, but I still wold have pulled the back cover off and not risked the hardware on that one.