I would find your original receipts, and start by knocking 25% off what you paid; then if you get no responses, try 33%. It's hard to predict what someone is willing to pay versus how soon you want the money. Ebay with a minimum starting bid is your best bet.
I dont think he wants to pm any of us. I think he wants us to tell them what they are worth lol.
Used gtx 470's on ebay go from 150$ to 200$ USD
i7-920 50-150$ on ebay.
the EVGA X58 there are a few used on ebay with bids going for 127$-150$
Dont forget there are shipping fees we dont have any pictures or details on how they have been used and how old they are. Im going to pay more for a 2 month old never overclocked gtx 470 then a 6 month old beat to piss one.