I have a 2008 Mac Pro with a serious issue concerning the logic board,, got the folder with "?" at startup and after much diagnostics and speaking with Apple tech it was determined the logic board is dead. I have since purchased a new Mac Pro. So this one is just sitting in the box now. I was wondering if anyone had any success selling a mac with a serious issue like logic board failure? I was thinking eBay but wondered if there are any reputable refurb websites that will give you a fair price? Thanks.