I am trying to build a home server capable of safely storing 4 TB of data (RAID required), capable of streaming HD video (HDD I/O should be fast enough) and capability to expand as needed (hot swappable bonus) I am limited to about $7-800 for the machine (I already own the SATA HDD's). Any suggestions on case, RAID card, mobo, processor, etc...
Well, that is up for debate. I own WHS, and was running WHS...until it crapped out on me. Hence the reason for a new build. I love the WHS experience, but I want to add hardware RAID for redundancy. I lost a lot of data and the rebuild/re-install/recover process built into WHS isn't 100% reliable.
Green isn't my number one priority, but saving on the electric bill would be a nice bonus.
Right now, lets assume I will be using WHS, but want to rely on a hardware RAID card for my data redundancy. Does this help?
You can pick up either of these good RAID cards for $300 apiece if you feel the need, but this still can't guarantee data. You def. need a backup plan. i.e. burn data to dvds or leave a copy at someone else's.
Personally, I'd skip the RAID card, install Ubuntu Server and add required server apps such as MediaTomb (video/audio streaming for PS3/XBOX), Samba (file sharing; watch videos & listen to music right on a Windows pc/laptop) and LAMP (web server for your own websites/web portals/news feeds/newspapers; I use drupal). I'd configure the 4 TB drives as Linux software RAID which is pretty reliable.