Hey guys, this is my first post ever here! I have been a long time follower of the forums and reviews and I finally decided to take the plunge and register. Anyway, I am looking for a water block for my HD 4850 that covers the entire card, or at least the ram. Water blocks for the HD 3850 look like they would fit (like this one) but I have yet to find one that specifies it is compatible with the HD 4850. If there isn't a full coverage block would anyone know of a water block that just fits the GPU and fits into one expansion slot? Thanks for the help guys, its much appreciated.