This is a good time to get rid of Romo, his stock will never be higher (even with the BUF fiasco). I assume you are in a 3WR, 2RB league with standard scoring? (FYI-try to include that info in your question, it helps us to give you good counsel). If that's the case I think I would go for it. Palmer is all you're going to need for the rest of the season barring injury. He should always start ahead of Romo anyway so trade away and get someone you can start.