Wow, now your thread-stalking me, aren't you? Just dying to jump down my throat because you disagree with my assessment of the state of the power mac.

Show me what statistics you have on the number of fielded liquid cooled computer systems vs leakage occurrence.

EDIT:
And, I admit to not knowing the specifics of the Delphi device when I first posted.
Turns out, it's not a peltier, rather, a water and propylene glycol based radiator complete with pump. does this mean it will leak?
I guess only time will tell.

Without statistics, it is most certainly FUD.