My MacPro 2008 (2.66/ghz dual quad core) died this week. I did as much troubleshooting as I can w/o any success. I finally had a MacGenius look @ it and he concluded it was the logic board. I don't have AppleCare, so my MP was no longer under warranty. The cost to replace the board, according to the MacGenius, is ~800 + tax. I have opted to go another route and just sell it. Does anyone think there's a market for it? What would be a fair market value for just the MacPro (minus any harddrives, airport card, keyboard, and mouse)?