Hi there, I wondered if I could get some advice as to the second hand value of the computer.
Processor: AMD Athlon II X3 450 stable unlock to Athlon II X4 @3.2 GHz, has not been overclocked, runs undervolted at 1.3V on a daily basis.
MoBo: Asrock M3A790GXH/128M
RAM: 4GB G.Skill Ripjaws 1600MHz Cas 9 (running at 1333 Cas 8 1.5V)
GPU: Sapphire AMD/ATI Radeon HD 6850 1GB, solid card from 775 to 950 on the core clock with an increase of 10mV
Sound Card: Asus Xonar DS with Op-Amp upgraded to a LM4562NA (National Semiconductor)
PSU: Antec HCG 520
Case: Black Bitfenix Shinobi, with red mesh, Fans: Intake 2 x 120mm Gentle Typhoon 15, Exhaust 120mm Bitfenix Spectre, Top Exhaust 2 x 140mm red LED Bitfenix Spectres. All hooked up to 2 hidden zalman fanmates.
Other stuff: 500 GB Seagate Barracuda, DVD re-writer (hidden), Noctua NH D14 (can be changed with a CM TX3, if it doesn't affect the value).

I built this rig a bit over a year ago (March 2011), but may need to sell it as I could do with a laptop from the dreaded worm-blighted with a fruit logo.
Just a general idea of what you this this is worth would be nice (it has been kept almost entirely dust free on the inside).