I am keeping coolermaster fans. The waterblock that I used was swfitech storm. On my 7800gt I used danger den maze 4 waterblock. Northbridge watercooling was not a possiblity on my mohterboard.
I have other 120mm fans aswell
Picture can be found below, two barbs will be plastic, on the picture there is one metal and one plastic
http://marcin12.home.comcast.net/thermo.jpg