I have an Asus GTX 580 (nVidia) up for grabs. The person who wants it must pay shipping. Or if you're local, come and pick it up.
I really want this to go to an artist in need. Getting it and turning around and selling it would really piss me off.
The videocard is heavy. It's big. And it's also a power hungry lil' thing. Make sure your case/specs can handle it. Shipping to the US is about $20.
Payment via PayPal.
Check out the detailed specs on Asus' website.