Which movie is tha C.R. pic from? I'm guessing Adams Family since you keep mentioning it, but whatever movie it is, I haven't seen it... yet.
And as for the other ORIGINAL point to this thread - It
would be nice to get actual numbers on blocks. Total surface area, flow rates/restriction, cooling ability, etc... It doesn't have to be as specific as intustrial specs, but just a small something would be nice.
Send them out to an independant testing lab (anyone have a friend who works at one for $cheap$ testing?

) and get data for low thru high flowrate at a few average wattages of heat different CPUs give off - whatever data would be useful.
If you had hard data for both waterblocks and heatercores, etc... you could probably design & match up the best efficiency system for
your computer. I'm sure there are hardcore watercoolers who
would love to get this data.