Radiator for CrossFireX

I am about to go to liquid cooling, and I wanted to know if it was better to have a radiator fan with 3 or 4 for a 120mm CrossFireX system ?

Waterblock for the CPU, the CPU is a Q9650

Here are options for CPUs that can be

1. Enzotech Sapphire
2. Swiftech Apogee GTX
3. D-Tek Fuzion

Here are the radiators which I intend to take

1. Black Ice Extreme 380
2. Magicool XTREME QUAD 480
3. Swiftech MCR320 360mm

The pump

1. Laing D4-Basic 12Volt
2. The Innovatek HPPS - High Power 12V

The tubes solely those are best available.
I welcome advice from you :whistling

If you think that water should be first on the GPU and CPU you will see that the CPU is getting all the heat of the above, but if it do the opposite, the GPU will take the heat of the CPU.In these cases it would be better to use 2 radiators so as to cool the water before passing on the CPU or GPU, if you prefer x then space a single peak at 4 radiator fans.

I would prefer swiftech products, including pump.

Ok then cylindrical reservoir, and 4 rad fans.

As for the CPU Waterblock I chose the D-Tek Fuzion.

Chipset user for the original motherboard, they say that performs its job well, the only flaw is that we must adapt the tubes more big because without mounting adapter tubes of medium size. Is there someone who can explain briefly the sizes of the tubes? The D-Tek Fuzion I think has connectors suitable for 19/13 mm tube right?