I seen one the other day, my friend recently purchased it, I was pretty impressed for it being compeletly silent and no fans at all, we are modding it with a water chiller soon though, working out the specs first.
I want one. If they come down in price to ~$200 I'll probably grab one. The performance could be made even better with a faster pump. And for those extreme gaming sessions you just drop some ice cubes in the top