Gigabyte GA-73PVM-S2, Core 2 Duo E6400, 4GB DDR3
3x HDDs, currently 1x 1TB, 1x 1.5TB, 1x 2TB
Windows Home Server (v1) and the usual gubbins this entails:
Storage for music, videos, photos
Automated backup of all PCs in the house using the built in backup
Extras:
Sickbeard/CouchPotato/Headphones/sabnzbd - auto downloading of stuff
XBMC - the above notify this XBMC instance which is always running and keeps the database up to date
MySQL - for centralised XBMC database
OwnCloud - for synchronising stuff like photos/documents for parent's PCs (uses MySQL)
ArgusTV - record/playback LiveTV with a BlackGold BGT3620 FreeviewHD card, integrates with XBMC nicely (and uses MySQL)
Apache/PHP - for testing of website stuff
Thinking about moving to WHS 2011 or WSE 2012 as I want to swap to some higher capacity disks, but will miss the DriveExtender from WHSv1, I know there are 3rd party apps like DrivePool or DriveBender.