PureOverclock has published a review on the AquaComputer AquagratiX 5870 GPU Water Block
A quote from the article:
>> AquaComputer AquagratiX 5870 GPU Water Block Review
AquaComputer offers a full range of water cooling products and accessories, and today we'll be looking at the RV870 full coverage GPU water block in their popular AquagratiX lineup for the ATI Radeon 5870. The 5870 has proven very popular with gamers and overclocking enthusiasts alike; there's nothing like a full coverage water block to keep things running cool and quiet at top speeds.
>> AquaComputer AquagratiX 5870 GPU Water Block Review