Your selected components are EXTREMELY expensive and overkill for your purpose which has minimal requirements (besides storage). If that was your intent, fine. Otherwise you should start over from scratch.
True. I also feel that this is way too expensive for my needs.
But the old pc I had wasn't really cutting it, board had no sata connections, psu was old and efficient, missing ram and old rams costs a lot and is kinda useless.
I guess your chosen components allow you to put a checkmark next to "upgradable" but that's useless since you could do everything else for a lot less money and what you're planning to buy will lose value relatively quickly.
Well 'upgradable' is more like if this server project fails so I can turn it into a little i5-3570k beast (I am using oldish, inefficient QX6850 atm).
Also PicoPSU I can't really get it here and shipping costs the same if not more as the picopsu+adapter itself. Also big problem with picopsu - I have no idea how to attach multiple sata ports to it and I feel like my skill-set is not sufficient here.
The lowest-power server and the cheapest server is no server at all. Why don't you start learning on a virtual machine? The day you'll have a real use for a physical server, your cash could well buy more server than it would right now.
It's not only for learning. I pay $200 a year for feralhosting (seedbox, openvpn, ftp access). Crashplan with sugarsync and psybnc is another $130. I will drop most of them if not all after getting a server. Electricity bill shouldn't be more than $80 yearly.
Anyway, it's a bit too late to change anything as I just ordered my parts. Should be arriving some time soon.
PSU: BN190: PSU be quiet! STRAIGHT POWER BQT E9-400W, 80 PLUS GOLD,
RAM: CMV8GX3M2A1333C9: DDR3 Corsair 8GB (2x4GB) 1333MHz CL9, 1.5V
HDD: WD20EFRX: Vidinis diskas WD Red 3.5'' 2TB SATA3 64MB IntelliPower, 24x7, NASware™
CPU: BX80623G550: Intel Celeron G550, Dual Core, 2.60GHz, 2MB, LGA1155, 32nm, 65W, VGA, BOX
MB: P8Z77-M: Asus, Z77, DualDDR3-1600, 2xSATA3, 4xSATA3 RAID, HDMI, GBLAN, mATX
Total: $432 including taxes and shipping.
I will add two 1tb harddrives from my desktop pc and will be using a NZXT 210 as case.
Not sure about the UPS yet. I can actually lose most of the data as I will be having my most important data (~100GB) on 3 different locations (including this server).
Will report back after it arrives and I run it a for a day or two.