Hey, kacir, the first approach would work, but I think the second probably wouldn't be a good idea. The reason I say that, is that your buyer would have to authorize his Reader to this other account anytime he wanted to read the books on it, since they can't be xferred to another account. Of course, he might be able to talk Sony into xferring the books for him if he were to tell them that he wanted to close the 'extra' account, but that means getting them involved in the whole mess.
Your first idea is probably a better approach. Your buyer could set their password (and even e-mail address) to something temporary and send you that info. Then you could log into his account, and authorize your Reader to it. I think you then could more or less immediately de-auth it (though I'd wait an hour or so, or until the credit shows up in the transaction list, where it seems to show up first) -- don't forget to de-auth your PC too (it will authorize automatically when you log in the first time)!
After that was all settled, your buyer could just change his password (and e-mail) back to whatever he uses now, and everything should be back the way it was, except he has your credit.
Um ... does any of that make any sense to anyone other than me?
