I have chosen to go for the suggested Noctua brand. I'm getting 3 Noctua NF-S12CFLX 120mm fans which will be providing the cooling for the liquid.
I just read that in the computer whilst being water cooled the parts that are may get as cold as that there may be evaporation on the tubs and waterblocks... Could that really happen? I think that the blocks will be too hot and the liquid can only be cooled to surrounding temperatures, unless I stick the radiator in a fridge which I'm not planning to do...