Results
After installing the WaterCooling I soon found that the temperatures had changed from the previous Zalman flower setup. The CPU temp had gone down as expected, in actual fact they had dropped from 62c with the Zalman to just 47c with the WaterCooling. I am more than happy with a 100% load temp of 47c
One thing I hadn't bargained for was the increase in System/Case temp, but then if you think that before I had 3 case fans including the PSU exhaust it's hardly surprising to think that they had input into air circulation throughout the case.
Before CPU @ 62c System @ 25c
After CPU @ 47c System @ 33c
I'm happy with those results for now, unfortunately, nVidia don't provide temps for the GF4 core, but I’m sure they are lower now with the GF4 Water block fitted.