Hello everyone, 
 
I built my first rig with this forum's help. So back to upgrade now. Last build was 2011. 
 
What are your thoughts on this planned rig?
 
Asus Sabertooth Z170S - what do you think about this mobo? I want to stay with ASUS.
i76700 (not k, only auto overclocking BIOS). I want a 7 series for hyperthreading as i mix a lot of video, 4K etc. 
corsair Obsidian case - keeping the case, it's a classic. 
2 HDS 1 TB
Seasonic 1050W- love the PSU
GTX 970 MSI Gaming 4G - should i sell it and get the 1070 Gaming 8X? I'm only playing in 1080p on a single screen. But already, Witcher 3 can slow the 970 down!
Sound Blaster Z PCIe Sound Card - I hook my computer up to a hybrid tube/transistor audiophile amplifier that power Polk full tower speakers. Should i choose another sound card? I want to game but also watch movies and love listening to classical music and so forth, direct from lossless format or CD. 
What RAM should i get? I want something in red. No need for overclocking. 
What SSD should i get? 
 
Thank you!
Jonathan