I think this would be a simple way to drop the high pitch whine of the fx quite a bit. Since the shroud seals it inside most of the sound you hear is out the back, attaching one of these to the back might be one temporary fix till the Zalman arrives. I might try one.
I'm leaning towards keeping my card from Gameve, the card is flawless besides the noise for me. Will it support VIVO with wdm drivers and 3d stereo? I have the vivo cables from the ti4600.