This is my setup.
24" crap monitor
Intel i5 3570k @ 4,5 ghz
asus maximus Gene V motherboard
corsair xms 3 1600mhz ddr3 4x2 gb
Nvidia GTX 470 @ 800mhz core and 1780mhz memory.
Intel 330 120gb SSD
WD green 2 tb storage
Noctua NH-U12P SE2 cpu cooler
2 front 120mm pwm fans ( inlet )
1 top 120mm pwm fan ( outlet )
1 back 120mm pwm fan ( outlet )
Custom fan speed curve so the noise is kept very low under low load.
The case is a Define R3
Works like a charm, 24/7 stable.
For now i run the built in sound card which sounds as good as the HRT headstreamer..I a/b compared the two. Head streamer and a nuforce udac is in a drawer for now..
Under the table is a hook with some SRH-840s and some Superlux HD330 on it :)
Oh and i also run a Nexus 7 and a samsung galaxy S2