First Build Ever -- Where are my potential hiccups?

[supermixx]

Building a workstation that has the ability to crunch 4k video editing in Adobe Premiere, although right now I'm mostly editing DV and 1080p HD. (I'm 'overpowered' to make rendering as close to instantaneous as possible.) I also do a lot of DTP and photo editing, and it will anchor my home recording studio.

Build first, then questions.

BUILD
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PCPartPicker part list: http://pcpartpicker.com/list/g8Yd6X
Price breakdown by merchant: http://pcpartpicker.com/list/g8Yd6X/by_merchant/

CPU: Intel Core i5-6600K 3.5GHz Quad-Core Processor ($238.99 @ SuperBiiz)
Memory: G.Skill Ripjaws V Series 32GB (2 x 16GB) DDR4-2133 Memory ($114.99 @ Newegg)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($92.00 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.49 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.49 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.49 @ OutletPC)
Video Card: Asus GeForce GTX 980 4GB STRIX Video Card ($504.99 @ SuperBiiz)
Power Supply: EVGA 850W 80+ Gold Certified Fully-Modular ATX Power Supply ($99.99 @ Newegg)
Optical Drive: LG GT80N DVD/CD Writer ($35.99 @ Amazon)
Optical Drive: Asus DVD-E818AAT/BLK/B/GEN DVD/CD Drive ($16.89 @ OutletPC)
Operating System: Microsoft Windows 10 Pro OEM 64-bit ($129.88 @ OutletPC)
Wireless Network Adapter: TP-Link TL-WDN4800 PCI-Express x1 802.11a/b/g/n Wi-Fi Adapter ($38.88 @ OutletPC)
Total: $1415.07
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-07-06 13:28 EDT-0400
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Questions:
1) can I reasonably expect this system to survive a GPU upgrade (or addition), and a CPU upgrade before it's obsolete?

2) could that realistically be 4-6 years, or even in perpetuity if I keep my software in line with the system?

3) is there a Z170 LGA 1151 that could support dual GPUs (my CPU does, correct?)

4) will I have room to add a sound card upgrade as well? Are they even necessary with the plethora of USB external hardware?

5) do I have enough connectivity for these connections (without compromising my 500gb RAID drive): 2 on desk monitors, and an HDMI out for an in studio TV; one thunderbolt, 2 USB 3.0/3.1, two power delivering USB 2.0, and a FireWire port/card (old artsy camera and mini DV deck)

 

[supermixx]

Can I get an installable m.2 connector for a second m.2 ssd drive?

This configuration seems to only have one.

I noticed the bump up in processor; nice! It's actually more affordable with the changes.

If I let go of the thunderbolt connectivity (with multiple USB 3.0, a USB+ C, and a compatible USB 2.0 charge, the only other connections I have to have are FireWire and the three display ports (I guess I split the one for dual monitors, and use the HDMI for the TV....?)

I'd still drop the internal HDDs for later; no need to upgrade the CPU any time soon, I've still got 32gb RAM, if this can still upgrade to dual GPUs---it may be time to seal the list until shopping time...!

 

[logainofhades]

There are PCI-E adpaters, that you can buy, for M.2 drives. You can just use a regular sata one, for your scratch disk. The SSD you picked were sata anyway. That GTX 960 has multiple display ports, already.

 

[supermixx]

There are PCI-E adpaters, that you can buy, for M.2 drives. You can just use a regular sata one, for your scratch disk. The SSD you picked were sata anyway. That GTX 960 has multiple display ports, already.

... Only because I didn't want to spend the $320 on the M,2 drives off top...! It was the best I could do, as I understood, on the other build.

My cheif concern is having a fully functioning machine, that I can grow with. My other machines always left me feeling 'stuck,' with whatever was in then, and then the we're obsolete.

I realize m.2 is probably faster, but if it is not markedly faster, then I'll just change the OS drive to M,2, and keep the other as a SATA.

 

[supermixx]

PCPartPicker part list: http://pcpartpicker.com/list/JGwmqk
Price breakdown by merchant: http://pcpartpicker.com/list/JGwmqk/by_merchant/

CPU: Intel Core i7-6700 3.4GHz Quad-Core Processor ($298.99 @ SuperBiiz)
CPU Cooler: Deepcool GAMMAXX 400 74.3 CFM CPU Cooler ($16.99 @ Newegg)
Motherboard: ASRock H170 Pro4 ATX LGA1151 Motherboard ($98.99 @ SuperBiiz)
Memory: G.Skill Ripjaws V Series 32GB (2 x 16GB) DDR4-2133 Memory ($119.99 @ Newegg)
Storage: MyDigitalSSD BP5e Slim 7 240GB 2.5" Solid State Drive ($59.99 @ Amazon)
Storage: Sandisk X400 256GB M.2-2280 Solid State Drive ($86.99 @ SuperBiiz)
Video Card: MSI GeForce GTX 960 2GB Video Card ($184.99 @ B&H)
Case: Corsair Air 540 ATX Mid Tower Case ($109.79 @ Newegg)
Power Supply: SeaSonic 520W 80+ Bronze Certified Fully-Modular ATX Power Supply ($65.99 @ SuperBiiz)
Optical Drive: LG WH14NS40 Blu-Ray/DVD/CD Writer ($46.85 @ OutletPC)
Operating System: Microsoft Windows 10 Pro OEM 64-bit ($129.88 @ OutletPC)
Wireless Network Adapter: Gigabyte GC-WB867D-I PCI-Express x1 802.11a/b/g/n/ac Wi-Fi Adapter ($29.99 @ SuperBiiz)
External Storage: Western Digital Elements 1TB External Hard Drive ($55.99 @ B&H)
Total: $1305.42
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-07-12 10:57 EDT-0400

 

[logainofhades]

That should work out fine, for you. As you stated OS, on the M.2, and the sata one can be your scratch disk.

 

[supermixx]

Thank you for your help!

Again, I realize a lot of this is mundane to you, and many others on here. But it's intensely confusing, especially working with a limited budget.

Now I have to be sure that GPU is just right on the GPU forum.

I appreciate help!