Looks pretty good if you ask me!
Koolance introduced the first full-coverage water block for NVIDIA's recently released GeForce GTX graphics cards. The Koolance VID-NX460 as it is called, is made of nickel-plated copper with an acrylic top and stainless steel film covering it. It measures 6.25" x 5.75" x 0.62" (15.9cm x 14.6cm x 1.6cm), weighing 1.5 lbs (680g). Being a full-coverage block, it cools the GPU, memory, and VRM areas of the card. Internally, the block channels water through a dense micro-fin array that increases heat dissipation area over the GPU, and a pass over the memory/VRM area. The acrylic top has holes from which common 5 mm cylindrical LEDs can be inserted giving the block a glow. The block includes a blue one. The VID-NX460 has G 1/4 threads, nozzles are to be purchased separately. It is priced at US $109.99.
Aug 2, 2010 - article - techpowerup.com