Needing some advice regarding water cooling.

Hi everyone, as the title says I need some advice on water cooling. reason being I am going to be putting a second graphics card in my rig to help with the 3D vision setup I just bought. (really awesome btw)

I currently have ..

Intel i7 970 (6 cores)
16GB DDR3 (2000mhz)
GTX 580 Gigabyte
X-Fi sounblaster Titanium Pro (fatality series)
Win 7

So obviously I want another GTX580 as the 3D vision hammers the frame rate quite a bit. I mean other than chopping it in half to run it. I assumed seeing as it was an Nvidia thing that it was GPU intensive (please correct me if this is not right)

So, all that said. Can people offer some advice in what to get?
http://www.ebuyer.com/120878-zalman-reserator1-v2-fanle...
Saw that one on Ebuyer.
Do I need to buy anything else with it? And of course, is the one I linked any good?

Any help is appreciated. Thanks in advance.