WaterBlock for GTX260's in SLI

I'm upgrading to water cooling and would appreciate some suggestions for waterblocks on my 2 GTX260's. Has anyone used this?:

http://www.crazypc.com/products/PX9363R.html

Here is one that I have installed before and works flawless if you know what your doing....Hope this helps.. and Btw I have purchased many products form this e-tailor and I highly recommend them :

http://www.frozencpu.com/products/ [...] &mv_pc=403

Yea, it lowered the temps on a BFG GTX 260 (216) from 59c load (60% fan-speed) to 42c load using a Swiftech H20-220 Apex system....

there are other more cheaper blocks out there that work fine, but IMO the Danger Den line is top notch....