Tweakers Australia has just posted a review of the Arkua 868 cooler for the Socket 478 P4! Here's a snip:
"Established during the hectic year of 2000, Arkua Technology is a fairly new player in the heatsink market, focusing on the research and development of heat conducting techniques that can be successfully applied to CPU coolers of various kinds. Their latest creation for the P4 looks as if Arkua has really backed a winner here - it's called the Arkua 868, and features a unique design and copper core. You may have noticed a lot of coolers out now have similar characteristics, by what makes this heatsink so good? Well read on and find out..."