Please use PCPartPicker in the future, it makes it easier for us
ASUS Strix has a quite some complaints about coil whine. I would recommend to talk to some GTX 970 owners. EVGA and MSI have some cards that have 0 db modes too, mind you.
CPU Cooler, anything flagship of Be Quiet! (as @MLG Doge and @zyntaxable said) or from Noctua (if looks don't matter) (as @Smooth Bunz said)
Case: Fractal Design is popular in the silent scene (as @Smooth Bunz said again ), and Be Quiet! (as @the ginger gamer said) seems to be doing well here too. Check out some reviews.
Fans: Noctua for performance, Be Quiet! for looks (Be Quiet still performs really well, just, nothing can beat Noctua somehow. They're wizards.)
Oh, and don't be fooled by Corsair's "quiet" fans. They're not quiet.
On the fan controller, maybe. I would rather recommend to make a custom fan curve though.