For the ram i use Zalman ramsinks on my cards. It's debatable really that the ram even needs cooling. The ramsinks on my 480 barely get warm. For the VRM's on my 480 i cut up a old pentium cooler as the ramsinks could'nt handle the heat even with a fan blowing directly at them. These are the problem as the vrm's get insanely hot even at stock speeds.