Consider you can get a core I5 desktop with all the fixins, brand new from any major PC manufacturer for about $550 and throw a $100 video card in it and have better performance that your current system and a warranty.
You might be able to get $500 for the system, but in my opinion you would be better off just upgrading what you have with a new motherboard and CPU, then add a fancy video card and new power supply later, or do the video/power supply now, and cpu/board later..
Thanks for your replies. Yea i invested 500 on it so i was thinking to at least sell it for 550 to get some profit. The reason im not just upgrading it is that i wanted to make a new build just because i enjoy it and wanted to make a liitle pocket money while doing it.
Im 16 so making 50 bucks building a computer isn't too bad for me I could always overclock it a little? My point is that i want to keep building computers but not loose money doing it.