http://www.xbox-scene.com/
top of the page people.
I just watched it and it confirms everything we already know.
Plus, Xbox 360 has a 'watercooled heatsink solution' according to a fella in the vid. It all looks intergrated, you don't have to put the water in there yourself! Clever stuff.
EDIT: http://msxb.wmod.llnwd.net/a274/o2/o...ny_v1_750k.wmv
Direct Link to video