[Build help] Home router/server

Originally Posted by stenoret 

Hi guys,
I'm looking to build a router/all-purpose server for personal use and a friend of mine pointed me to this forums with the words "a lot of really pro people hang out there" so here I am.
Requirements:
- 2 2TB drives in a RAID1 array
- 2 NIC (my ISP only allows a single machine to connect to the modem - this server will do NAT and provide IP addresses (via DHCP) to all PCs in my home network.)
Priorities:
- Price. I'm trying to not go too crazy.
- Noise. This build is supposed to be left running without interruption, so I'm trying not to add a consistent background noise to my room.
Now that that is out of the way, I've already compiled a small list of parts that might fit. I have close to zero experience with hardware beyond small maintenance tasks, however, so I'm open to any suggestions. Feel free to point out if I'm completely wrong.
MoBo: Asus C60M1-I
HDD: 2x WD AV-GP 2TB SATA 3GB/s
RAM: Kingstom 4GB DDR3
NIC: TP-Link Gigabit PCIe. I don't expect this choice to be of importance, really. Please point out if I'm wrong.
PSU: This one's the main question for me.
As I stated above, I have two main priorities with this build - noise and price. The way I understand this, a PSU with passive cooling would have minimal noise, but the price is quite a bit higher. On the other hand, I've been told that a regular corsair low-Watt PSU would produce hardly any noise either due to my parts consuming hardly any power.
Thus, the following questions arise:
- How noticeable is the difference in noise here, really?
- Does the choice of PSU have any impact on how much power my build actually consumes?
- How would the Corsair influence required case size? (I'd prefer keeping the build somewhat compact.)
I'd be grateful for any input you can offer. Again, feel free to point out any complete retard-ness I have committed. As far as hardware goes, I'm very much a newbie.

Originally Posted by stenoret 

Yeah, that's what I meant.
I'm not sure. I mean, I could use a regular PC case, anything smaller is just a bonus.
Hm, I was under the impression that you could establish a RAID array at a software (OS) level, too? (The server will be running some sort of linux in init3, most likely an OpenSUSE. A quick search showed me a few threads discussing Software-RAID1 on that OS.) Am I mistaken here? If so, what alternate MoBo do you recommend?
The price for PCIe NICs is pretty negligible. I just picked the first one I found. I'll change that.
PS: I'll go look through the PSU FAQ now. Thanks for the link.
EDIT:
Thanks a lot. I wasn't aware there was this much of a difference.

Originally Posted by stenoret 

I'm trying not to exceed somewhere around 550 euros here, at least not by too much.
PS: Do you think this PSU would be sufficient?

Originally Posted by stenoret 

I'm using this. Not sure if you'll be able to find your way around, however, as it's in German (and I don't think they have an English version available).