How much should I sell my computer for??

I just recently (1 month ago) built a gaming computer. However I realize I will not be using it as much as I intended due to classes, and am in need of some cash.

Hard Drive- Seagate Barracuda 1TB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive

Power Supply- CORSAIR CMPSU-550VX 550W ATX12V V2.2 SLI Ready CrossFire Ready

Video Card- GIGABYTE GV-N460OC-1GI GeForce GTX 460 (Fermi) 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card

Mother Board- ASUS SABERTOOTH 55i LGA 1156 Intel P55 ATX Intel Motherboard

RAM- G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600

Processor- Intel Core i5-750 2.66GHz LGA 1156 95W Quad-Core Processor

It has a decent disk drive, and casing. All of these parts are brand new.

I'd say $800 depending on the case... You can get the parts you listed for rougly $800 (plus a little more depending on the case and then whatever your OS cost)... And it is used... So probably around there... Unless it is so new that it is unrecognizable that you used it (like no dust/scratches/anything on anything)... Then you could maybe sell it at what you paid or even at a slight profit...

What case do you have and what other things are you selling with it? (pretty important because if it is in some cheapo case, that doesn't change much, but if it is like an HAF 932 or something, that could make it go up a hundred dollars...) Also are you including a monitor, mouse/keyboard... OS disc?

If you include all the peripherals and have a decent case, you could get maybe $1000 or more for it...