It all depends on wat type of water sink u are going to use i used a self contained one (so the water didnt touch the cpu) and mimiced the fan mountings and applyed HTC to fill any inperfections in the mountings and cpu case.
If u are using one where the water flows accross the back of the CPU then u just stick them together, but thats even extreem for me.
sorry to change the subject but
Should I get the GlobalWin with 80mm (40cfm) or the one with 60mm (27cfm) from 3DfxCool.com
The one 60mm cost $10 less than the one with 80mm...
Does it really worth it??
I am going to purchase one of them today...