AMD Phenom II X4 955 Black edition (UNLOCKED)
Gigabyte GA-M68M-S2P (REV.2.3)
Nvidia 9600gt overclocked:
core clock 767
shader clock 1918
memory clock 1011
Plus artic twin turbo Gpu fan.
4gb ddr2 ram at 667 mhz
3 Case fans (one Cooler Master 12cm SickleFlow System Fan - Blue Leds, and 2 Artic f12 fans)
Case:Ezcool H550D BLACK Computer Case with 500W PSU
500gb sata hard drive
22x sata dvd wrier drive
Windows 7 32bit (can support 64) Ultimate
bult in lan and 7.1 sound
First off, this isn't the right section for this. If you're looking to sell, head over to the classifieds (this post might actually be moved by a mod).
Any way, I can give you a real estimate but I would value this at only a few hundred dollars. The CPU is pretty decent, but the GPU is old and the power supply is definitely not a name brand. This would be a tough sell for you if you sold it to knowledgeable people, but could be a simpler local sale on craigslist or something.