Pimprig has a new review up on an excellent 3/8" inner diameter COMPLETE water cooling kit from Asetek. Think a triple 120mm radiator might do the trick? Here is a snip:

My initial expectations of this kit is that in it's complete configuration it will provide very reasonable performance but that better performance could be achieved with a little "twinking" of the components. I am a believer that there is more to be lost by water cooling the Chipset then is to be gained by it in most circumstances. That being said, many enthusiasts operate their systems in warmer environments and the addition of the Chipset cooler would be a welcome option indeed for these folks.



Link: Pimprig