Here is a pic of my Asus V6800 DDR G-force card. I installed 24 RAM heatsinks on the 8 memory chips (3 per chip) and added an extra beefy heat sink – a Global Win FA-420 on the GPU. I sanded and hand polished the edges of the heat sinks (for no real reason). I have not yet completely tested the card fully overclocked but it has not climbed over 131 F and idles at 120 F, playing Quake III at default clock settings (it used to run at 140 F).
Email Bob, Orange ,CA.
PS: Parts and advice were supplied by Tony at Plycon