First PC build

I'm looking to move on from my laptop and customize the R1 Ryzen from maingear. I'm planning on a dual monitor setup and streaming/gaming with ease and I wanted to get the communities thoughts on the build and any feedback is greatly appreciated (as I'm fairly new to this) motherboard:MSI B350M gaming pro Processor: Ryzen 7 1700 8 core with 16 threads 16GB HyperX DDR4 RAM Graphics card: NVIDIA GeForce GTX 1070 1000W EVGA power supply 1TB Samsung 850 SSD operating system drive and a 2TB Seagate HDD That's about it, thoughts?comments?