Xbox 2 Develoment Kit: here it is

We knew already that the Xbox 2 SDK was a Mac. But http://www.macned.nl/ has published many photos, and hereafter is one of them:

It is a Power Mac G5 dual 2GHz, with 512MB of RAM and a RadeonX800XT.
The administrator of this Dutch site has certified that those photos were real, taken by him, and that it was not a PhotoShop-based fake.