Just got a bonus and want to join the PCMR... Wanna check my build and make sure I'm not an idiot?

Hello! I've read the guides and did some solo research before making this post, but I wanted to talk to the folks in this community before pulling the trigger on anything.

Here's what I know so far:

• I'm looking to spend around $1800 (or less), starting from complete scratch. Focusing on gaming/streaming.
• Based on that number, a maxed out 1080p build seems like my best bet. In that regard, a 144Hz monitor seems like an obvious pick.
• Are GPU prices expected to go down again soon? I know the new Vega cards are launching soon, is it a good idea to wait for their release before buying a GPU?
• I wanted to get an i7-7700k card for future upgrades. Like many of you, I'm sure, my end goal is to get a 1080Ti and 4k monitor, but they're both expensive as hell now. Figured it's best to wait on those.

Here's my build so far:

PCPartPicker part list: https://pcpartpicker.com/list/X8kfzM
Price breakdown by merchant: https://pcpartpicker.com/list/X8kfzM/by_merchant/

CPU: Intel - Core i7-7700K 4.2GHz Quad-Core Processor ($308.87 @ Amazon)
CPU Cooler: Noctua - NH-D15 82.5 CFM CPU Cooler ($88.95 @ Newegg)
Motherboard: Gigabyte - GA-Z270XP-SLI ATX LGA1151 Motherboard ($123.88 @ OutletPC)
Memory: GeIL - EVO POTENZA 16GB (2 x 8GB) DDR4-3000 Memory ($127.99 @ Newegg)
Storage: SanDisk - Ultra II 240GB 2.5" Solid State Drive ($84.95 @ Adorama) Storage: Western Digital - RE4 1TB 3.5" 7200RPM Internal Hard Drive ($49.30 @ Amazon)
Video Card: Gigabyte - GeForce GTX 1060 6GB 6GB WINDFORCE OC 6G Video Card ($274.98 @ Newegg)
Case: Phanteks - Enthoo Pro ATX Full Tower Case ($89.99 @ Newegg)
Power Supply: EVGA - SuperNOVA NEX 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($74.88 @ OutletPC)
Operating System: Microsoft - Windows 10 Home OEM 64-bit ($89.89 @ OutletPC)
Monitor: AOC - G2460PF 24.0" 1920x1080 144Hz Monitor ($204.66 @ Amazon)
Keyboard: Logitech - G710 Plus Wired Gaming Keyboard ($81.95 @ Amazon)
Mouse: Corsair - M65 PRO RGB FPS Wired Optical Mouse ($34.99 @ Amazon)
Headphones: Corsair - VOID 7.1 Channel Headset ($59.99 @ Amazon)

Total: $1695.27

I'm open to any and all advice, and I appreciate your time even reading this in the first place. The community seems really great here and I hope to be a contributing member in the near future.