I want to get rid of my old computer, but first, how much is it worth?

[Athlon64S939]

well not that old, they still sell it but its still alot better than RD which is used for single tasking mostly.

 

[mr.monger]

http://www.teckcity.com/catalog/product_info.php?cPath=32_48&products_id=212

 

[ExGamer]

I can probly get ya 150$ .... mmm maybe