Summary: I got this for my first attempt at overclocking (an old p4 system just for kicks). I purchased this cooler mostly to give additional cooling to the graphics card (nvidia Fx 5200). I installed the unit right under the graphics card without much hassle and it cools down the card nicely. If you are looking for a cooler to lower the overall temperature in an older system slightly or keep an older video card cool, I would recommend the vcool.
Summary: My overclocked (626MHZ/1053MHZ Core/Memory) GTX260 reaches 75C when running in full power. After I installed the Antec Cool two slots below my video card -- with a Sound Card in between, it actually drops my GTX260 temperature a max of 5C (in high fan speed)! Quite impressive considering the setup. However, it is the 2nd LOUDEST fan when running in max speed.