First post here and looking for some advice please 
I'm in the process of building a small home server system to run 24/7. The intention is this will also store all my mkv movies to stream via Plex to a Samsung smart tv as well as laptops and ipad. We have 4 laptops that will be connecting potentially at the same time to, although only expect to stream 2 movies at any one time.
Current plan is the following:
Case: Fractal Design Node 304 (already have this)
Mobo: ASRock Z87E-ITX
CPU: Core i3-4150
SSD: Samsung 120GB EVO 850 (as boot drive)
HDD: WD 4TB drives (initially 2 or 3)
PSU: Seasonic 360GP
Would appreciate some advice on several things:
1. Does anyone have any experience of the motherboard or alternative better options?
2. Will the chosen CPU be sufficiently powerful? Would a T version CPU be worthwhile with the lower energy usage?
3. Any advice on RAM, amount, speed and brand gratefully received.
4. Any other comments on the proposed components/suggestions for alternatives
Many thanks

I'm in the process of building a small home server system to run 24/7. The intention is this will also store all my mkv movies to stream via Plex to a Samsung smart tv as well as laptops and ipad. We have 4 laptops that will be connecting potentially at the same time to, although only expect to stream 2 movies at any one time.
Current plan is the following:
Case: Fractal Design Node 304 (already have this)
Mobo: ASRock Z87E-ITX
CPU: Core i3-4150
SSD: Samsung 120GB EVO 850 (as boot drive)
HDD: WD 4TB drives (initially 2 or 3)
PSU: Seasonic 360GP
Would appreciate some advice on several things:
1. Does anyone have any experience of the motherboard or alternative better options?
2. Will the chosen CPU be sufficiently powerful? Would a T version CPU be worthwhile with the lower energy usage?
3. Any advice on RAM, amount, speed and brand gratefully received.
4. Any other comments on the proposed components/suggestions for alternatives
Many thanks