Hey mate, Its been a while since ive taken any pics. There is a thread on whilpool from a few years back...
Eman's Silent PC and Cooling Mod... - Cases - PC Hardware - Whirlpool Broadband Forums
The system is housed in a Coolermaster Stacker 810. They retail for about $200 but are hard to find these days. They have been replaced with the 830 which is terrible as a server case (good for gaming machines). The drives are standard SATAII Western Digitals.
As the system is left on 24/7 the drives will last forever
. Raid5 is a "write once, read lots" type setup. Meaning the drives basically get some data written to them, and the just read it occasiaonally. Whereas an OS drive is constantly reading/write which wears them out.
Also, its much better to leave a HDD on 24/7 than turning it on and off. That way the bearing is at the same temperature. So although my drives are 2 years old and have been on for over 15,000 hours. They have actually had less wear/use than most 3 month old system drives.
As for a file server solution...
Well, you can buy external NAS devices which basically have a network plug, and a couple of internal HDDs. They'll act as a server... The downside is they can be quite expensive and you cant easily upgrade them.
As for a file server... Well...
AM2 LE-1200 $38.
1GB Ram $25
G-B M61SME-S2 $54
Case + PSU $50
OS HDD? $20??
3 X 750GB Samsung Drives $300
So for $487 you can have 2.25TB of usable storage space. In order to have the 750GB drives appear as one, you'll either need to use onboard raid0 (no redundancy) or software raid. If using software raid your better off sticking to Linux, as windows software raid can be painfull.
The other option would be to purhcase a raid card as you get redundancy, speed and ability to have all drives show as one. However this will add $400 to the cost and you'll lose 1 HDD worth of space (as raid 5 is n-1 capacity).
But simply, you can build a file server PC (CPU, Mobo, Ram, Case, Onboard Video) for about $200. Then just add drives as you need them.
My server uses around 250w continuously, which is about 3.6c per hour (based on 14.4c/1kwh). That equates to about $300 a year of power usage. On a smaller setup (as suggested above) i would expect power draw to be about 80w or so. that should only cost about 1.15c per hour (27c a day to run).
If you wanted an intel setup, go for the Celeron 430D, as its a "35w version" which keeps power draw down. I was actually using a AM2 X2 3600+ 35w version for a long time, but ended up selling it for more than twice what i paid. Never got around to importing another one (35w versions are sought after due to the lower power consumption, makes them ideal for servers).