Watercooling for i7 4790k and gtx 970 reccomendation.

Solution
You can go in steps:
D5 pump (may be with res lilke https://www.ekwb.com/shop/ek-xres-140-revo-d5-pwm-incl-sl-pump)
Some 240-320 res (for CPU only 240 is more than enough, for CPU+gpu 320 and up is enough). I like alphacool ST30 XFlow rads due to the flexability
CPU block - you can't go wrong with EK Supremacy Evo, but today, i'd get one of those: https://shop.aquacomputer.de/index.php?cPath=7_11_12_2694
probably vario + vision
300-400 euro is a decent budget for a custom loop. and yet, i'd leave the GPU out of the loop. GPU block will cost 130-150 euro and is not transferable to the next card. 970 just does not worth it.
What case do you have (to have an idea what you can fit in)?
 
You can go in steps:
D5 pump (may be with res lilke https://www.ekwb.com/shop/ek-xres-140-revo-d5-pwm-incl-sl-pump)
Some 240-320 res (for CPU only 240 is more than enough, for CPU+gpu 320 and up is enough). I like alphacool ST30 XFlow rads due to the flexability
CPU block - you can't go wrong with EK Supremacy Evo, but today, i'd get one of those: https://shop.aquacomputer.de/index.php?cPath=7_11_12_2694
probably vario + vision
 
Solution