Koolance water cooling kits suxxors balls man. I've dealt with those kits before..
I recommend:
this case.
http://directron.com/da10bd.html
and a kit from one of these sites.
http://www.dangerden.com (the black ice rads are shit, but the water blocks are good.)
http://www.d-tekcustoms.com (pro core rad w/ shroud is good for 55$)
and the best kits available are @
http://www.jpiperformance.com (the V2.0 Scoop Shroud and XLR rad are expensive but the best in the states as far as pre assembled goes.)
If all else fails and you have access to a welder or are a welder you can buy a heatercore to a car somewhere and weld the fitting in and make your own shroud. 20$+ heatercores dissipate heat better then radiators.
http://www.petsmart.com has a good supply of pumps.
While Eheim is the best, they are expensive.
I recommend the:
Danner Mag Drive # 3
http://www.petsmart.com/fish/shopping/w ... F770.shtml
Make sure you seal the pump with plumbers goop or some type of adhesive to make sure no teh leaks.
recommended watercooling sites:
http://www.wc101.com
http://www.overclockers.com/topiclist/i ... %20COOLING