What is a fair price to sell the previous c2d Macbook Pro

[jviphone]

I bought the 2.66 15" MBP in February because I couldnt wait, well now I was thinking if the new one came out I could sell this one as it is only a month old.
What is a fair price for this computer. It has all base options, like the one you would buy in the store.

 

[Hellhammer]

Why do you want to sell it? It's 1699$ from refurb store so max 1600$, more likely 1400-1500$