You're right. Legally in most states, as is the case here in Kentucky where I work, companies can fire at will. However, in the company I work for, a community mental health provider serving ten counties in my region of the state, several employees who have, over the years, been terminated, have successfully sued my agency for settlements in the tens of thousands of dollars. How, I don't know. They have no legal basis, right? Yet, I assure you, several former employees have successfully done so. I assume my agency settled because they figured it would be less expensive than a drawn-out legal battle.
-kyrathaba
You have to get it on some other ground other than that you were terminated, i.e. I was discriminated against, and that led to my firing, etc.
In this case, they can point to the good old company handbook, and unless you can get yourself on the other side of that, you've pretty much got no case, unless you have a lot of money.
I had a friend in this situation (for something else), and he got the company to come to his terms by (1) getting them to agree to arbitration and (2) then bringing a team of high powered attorneys, that then scared the company because they saw that he was serious. In the end, he won the case, but lost the war... he paid the attorneys all of the settlement, and *still* owed them money. Pyrrhic victory, anyone?