Ive voted for jaron, im about to install an 2x Jaron ESKY one 90o(gpu) and one normal (chipset) as they were cheap ($66 Aussie each) and are all copper but downside is that its 3/8

i overcame this by making everything 3/8
and just to note, the simple PixelIce GPU Block is enough to run an 80watt pelt off if anyone was interested.