You should go for 2 D5 pumps or 3 DDC pumps, the 4.0 DC won't have enough power to push the water through all those blocks. For CPU you should rethink using the 3970x, the performance increase is 5% and the price increase is 70-100%.
Also I'm not 100% sure running the WC system on a separate PSU is clever, it is better for it (at least the pump) to run with the same PSU as the CPU and GPU due to there being a chance that the other PSU won't start at the same time, which will cause the CPU and GPU to heat up for a short time.
| Chassi: Phantom Fulltower White Edition | Mobo: Maximus V Extreme | CPU: i7 3770k
| Memory: 2x8gb G.Skill Trident X 2400mhz | GPU: PNY Geforce GTX 670 | PSU: NZXT Hale 90 750w
| SSD: Intel 120gb 330 series (OS) | Intel 120gb 330 series (Games n stuff)
| Monitor: LG 29EA93 | Cooling: Custom Loop