Okay fine, I made up the Lebron James part, but check out this tidbit from Marcus Thompson in the Mercury Q&A forum today:
Cleveland, from what I'm told, wants Fisher badly
Fish would be great fit with Cavs. It isn't that big of a surprise that they would be interested in one of the toughest and most clutch Warriors. His spot up jump shooting would be an asset for a playoff team, something the Warriors as presently constituted are not. Be on the lookout for our report card for Derek Fisher's 2005-2006 season with the Warriors.
Fish can take and make BIG shots.
99% of rumors never happen, but 99% of them are fun to talk about.
Is there anyone on the Cleveland Cavaliers that you would trade Fish for? Aside from Lebron James?

Warriors Nation would love to witness Lebron in a Warriors jersey!