I am planning my first water cooling project and would very much appreciate if local experts (or pretty much anyone) can take a look at my thoughts on the design. Please, criticize heavily and do tell me if there are some weak points that may be or even have to be improved in order for it to be a success. If it is a complete failure and is doomed to failure, please tell so as well. Ok, now to the topic. The system.
Case: Antec Eleven Hundred
Components to be cooled:
CPU: Intel IvyBridge 3770S, TDP = 65 W
GPU: 2 x HD Radeon 6950 (TDP = 200 W) unlocked to 6970 (TDP = 250 W) and overclocked (+ 20-30 W?)
Total: ~625 W
I want to have the whole loop to be contained inside the case, no external parts unless absolutely necessary. Also there is a strong preference for the system to be as silent as possible. Dampening materials and isolation will be used as needed to reduce the noise level. I am not restricted on the amount of money I can spend within reasonable bounds but I would prefer not to build a system that is too much of the overkill (some reserve is definitely nice to have). I find it very reasonable to pay for high quality components in the top-middle tier up to to a point where price
increase-performance increase curve starts being horizontal.

Here is what I came up with for the water cooling loop (all Koolance):
CPU Water block: CPU-380I $75
GPU: 2 x Full-coverage water blocks: VID-AR697 and VID-AR685 (already acquired)
Reservoir and Pump, RP-1005 with PMP-400, $235
Radiator HX-CU420V, 1x120, 30 FPI $40
Radiator HX-CU720V, 2x120, 30 FPI $50
Fans: Scythe Gentle Typhoon, 120mm x 3 (all push) $60
Tubing, HOS-13GN, 13mm x 16mm, 10' $20
Compression Fittings 13mm x 16 mm $50
INS-FM19 Coolant Flow Meter $25
TMS-205 Software Thermal Interface Controller $100
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Total: ~$700 with taxes and shipping
Potential questions I already have:
1. Would the PMP-400 in RP-1005 be able to provide decent flow to this loop (~1+ GPM)? My current thinking is if it could not, I'll add another pump to the loop serially.
2. Anything recommended to be added to the loop to simplify maintenance like bleeding and draining? Drain Valve (http://koolance.com/drain-valve-for-id-13mm-1-2in)? Rubber Funnel (http://koolance.com/threaded-rubber-funnel)? Quick disconnects surely look nice but they seem to introduce a lot of restriction which looks like an overkill for maintenance which I hope to be doing not more often than once a year.
Thanks in advance and have a cool day... or night.