I've got an 8800GTS 512 in my rig and my cpu is watercooled. I can get a Zalman waterblock from places on the interwebs for ~£30. Would you have thought it was worth the effort at this stage or to simply put the £30 towards a new card in the long term? Put it this way, I'm a student so a new Gfx card is out of the question right now, I may be more inclined to splash out once the fermis are out and they are either better than the 5xxx series or drive the prices down.