Right on.
ProCooling is the only site I know that addresses water cooling seriously, and extensively. Voiding a warranty just comes with the territory, but nothing suggested is intended for people who just don't understand the risks. All risks are assumed to be taken by each individual, with a reasonable level of understanding of them, and the necessary precautions.
(BTW, I wouldn't knock AMDMB just yet. I'd rather think of it as "in the early stages", but kinda stalled there.
)
To stay on topic... I like the way this poll is turning out. It's almost 50-50, so an alternative is a must, in the presentation. There's no sense in pushing a risk that half the people aren't willing to take.