think Thermalright made a concept cooler for one of the tradeshows that was similar.
The problem with cooling is diminishing returns, more airflow stops giving better performance at a certain point, so does size.
Though in the right case it would probably do very well with the right sidepanel/fan combo. Its a bit too high for something like the coolermaster HAF, but if the fan in the haf was right over the heatsink you'd essentially have a 230mm fan silently cooling the cpu cooler with fresh air, not at all bad.
Weight is getting daft though, the Thermalright/prolimatech coolers you can fit 2x120/140mm fans to are already pushing weight stupidly high.
THe prolimatech Mk13 gpu cooler as the right idea, huge sink on the gpu but have the fans attached via a pci bracket so the weight isn't on the card at all, it also allows you to side mount fans so you can have one bracket cooling two cards in xfire, one with fans below the top card with fans on the side so you save a slot between the cards and neither supports the fan weight.
At some point cpu coolers need to have the fan removed and supported by a bracket attached to the case somewhere near the top, with adjustable position to line up with different coolers. Considering how ridiculously fiddling Thermalright fan clips are and if you want a fan in the middle of some of their coolers it has to be done after mounting the heatsink to the mobo its a pain in the ass.