sorry Tool, but I will have to disagree with you on the aluminum idea.. Copper has been used in heatsink cooling for quite a while now, and has consistantly shown that it has better cooling properties than aluminum. Hense all of the super polished copper cpu heatsinks that are out.. this may also be an indication as to why you cannot find an aluminum set. The copper has a higher conductive state making it draw and dissipate (sp?) energy better. I did take a look at what you are looking at on the 11cb website, and would run with those.. they look purdy cool.. (no pun intended)..
Although I have yet to have a need to cool my RAM.. sure wouldn't hurt I guess..