night wolf I added some Zalman Super Grease to my PowerColor HD4850 today. Has thermal tape everywher except for the GPU. Mine was loaded with thermal paste from the factory. I took it all off and put some Zalman Super Grease on it. Cooled it down just a little.
I'm posting a separate thread for that.
I deffinitely want to upgrade VGA cooler but I want a kit that uses the stock screw mount holes and comes with heat sinks that use them along with some killer thermal tape or a proven thermal grease solution.
I was suprised to find a think plastic layer like a clear sticker all along the heat sink except where it made contact with parts of the board of the HD4850. Probably some kind of non conductive protectection. I left it in place though it seems like it would keep the heat in.
I'm looking forward to a better VGA cooler for the card though the stock one works decent it looks like people are getting better results with "ghetto" applications.