
I got my first dedicated rig yesterday afternoon. (picture above)
CPU: Intel(R) Celeron(R) CPU 2.93GHz (second hand)
Memory: 2 GB DDR2 (second hand)
Mainboard: Some cheap second hand board with PCI Express port (I don't know what it is exactly...)
450W second hand power supply
-- Above four: CN¥430 or ~US$66.24
A NEW CPU fan: CN¥30 or ~US$4.62
Storage: Used old micro-SD card read + one NEW 8 GB micro-SD card (CN¥80 or ~US$12.32)
Network: No WiFi adapter onboard, so I am currently making my old AirPort Express work as an WiFi client, connect it to the wired ethernet port.
Video adapter: Sapphare ATI Radeon HD 6870 (with two mini DisplayPorts, two DVIs and one HDMI output): CN¥1580 or ~US$243.47
Display: Apple Cinema Display 27" shared with my MacBook Air
Keyboard and Mouse: n/a
System: Ubuntu 11.04 running on micro-SD card (system boot very slow

)
Total cost: CN¥2120 or ~US$326.68
Performance: 247 Mhash/s