Salary negotiation tactics...suggestions

Here's another option. Go to your new job. Work your ass off. Exceed all expectations. Make The Man a lot of money. Accept promotions, bonuses, and salary increases. That's even better leverage than your former employer is offering. There are companies who have been known to counter-offer to get you to stay and then dump you after the fact because employers like loyal employees. It's below-the-belt but not unheard of...