Rad(s) to cool 2x5970 ?

[blackninja]

What Rads do I need to watercool 2 x Radeon 5970? I have a Thermochill PA 120.3 that I can dust off ... don't think this will do it quietly! I am thinking of getting a 120.2 to fit in series as I have a good place to put it (2x120mm fans on front of case) .. hopefully 120.3 + 120.2 will do nicely ... the CPU will be on a seperate loop if I bother with that ... tis the GPUs mainly as they get noisy.

I am aiming for 1000/1300 on the GPUs .. (which probably means 1.3v on the cores)