Zalman has announced a new GPU cooler designed for reference HD5850 & HD5870 boards. It has 239(L) x 98(W) x 51(H)mm dimensions and weighs 430 grams, it also uses 5 heatpipes and dual 92mm fans to keep the card cool. Zalman gives you a Fan Speed Controller and they own thermal paste to apply, plus VRM and RAM sinks so the other components can also be kept cool. Silent mode gives you 18dB of noise, while Normal mode produces 32dB. For more details check the product page.
VGA Central 