I personally have these
http://www.cluboverclocker.com/revie...oler/index.htm
installed on 2 boxes .... they are ok and are easy to install ... but ... water cooling will only cool down the machine to whatever the room temp is at or maybe slightly cooler ......
a bunch of reviews for other brands at same place :
http://www.cluboverclocker.com/revie...ater%20Cooling