As you can see on this screenshot, he is running Mac OS X 10.3.9 on a 2x2.7GHz G5 machine. He actually booted his machine on an external firewire drive which had Panther installed... but nothing prevents you from cloning the system back onto your new G5's HD.
And Cricri reports having no trouble at all running his dream machine under Panther... now, just grab your wallet and rush to the nearest AppleStore.
