No seriously dude....most PC sellers take 25% off cost if used even if its not for long.
Either way, I want serious specs. Not just "60gb hd" I want to know, SATA or IDE? not "768 RAM" what speed is it? whose the vendor? cas latency?
If you want to sell for a good price, price the PC up on newegg or something then show us what it costs exactly and if all the parts are there.
Need to be more specific.
Also, is the OS legal or not?
One more question! How long has the PC been used?