[pHaestus]

As far as general interest in wcing goes, I think it's somewhat cyclical in nature. CPUs undergo die shrinks or new tech and are limited by something other than heat for a while. Then as the tech matures cooling them down begins to be the limiting factor again (or even from the start for things like Prescott or dual cores) and all the sudden everyone's into wcing.

I agree that DIY is a bit of a dying breed for CPU blocks, but I think we'll still see some new tricks from the DIYers. We used to see a ton of people making #rotor style wbs here in the forums; wonder how many just buy MCW600xs now? Price/performance begins to favor that block I think. But what about the mosfet coolers and PSU cooling and all the other zaniness we see from DIYers? I don't think any of that is going TOO mainstream.

For overclockers I think playing with chilled water is the way to go. There's just something fun about it that is hard to avoid once you start messing with it.