Guys what PC systems are you running, Specs ECT.

I will kick this off with my setup.

Operating system: Windows 7 64Bit
Motherboard: ASUS Rampage II Extreme
CPU: Stock cooled 980x Gulftown
Memory: 12GB Corsair 2200 CAS 8
GFX Card: Single XFX 295
Power Supply: Corsair TX950W
Storage: 2 x Western Digital 2.0TB WD20EDS, 3 x Hitachi Deskstar 500GB
1 x Sony Blueray DVD Rom-RW, 1 x LITE ON DVD-RW

I tend to use it for crunching, decoding, plus quite a few XL docs, when I have time I use it to play a few games and use of media, it is also networked between the children's pc's, TV and the VuDuo

Would be great to hear what sort of rigs/setups you are using, plus what you use them for?